diff --git a/docs/reference/node_reference.md b/docs/reference/node_reference.md
index cf77a7e..fc72717 100644
--- a/docs/reference/node_reference.md
+++ b/docs/reference/node_reference.md
@@ -52,7 +52,7 @@
 | [Pandas Loc Row MultiIndex DataFrame](pandas_loc_row_multiindex_dataframe.md) | Selects a row or rows from a pandas DataFrame with MultiIndex and output as a DataFrame. |
 | [Pandas Loc Row Series](pandas_loc_row_series.md) | Selects a row from a pandas DataFrame and output as a Series. |
 | [Pandas Select Columns](pandas_select_columns.md) | Selects specific columns from a pandas DataFrame. |
-| [Pandas Select Rows](pandas_select_rows.md) | Selects specific rows from a pandas DataFrame based on a condition. |
+| [Pandas Select Rows](pandas_select_rows.md) | Selects specific rows from a pandas DataFrame based on a condition.  This node internally calls DataFrame.query(). |
 | [Pandas Xs](pandas_xs.md) | Selects a subset of a Pandas DataFrame using specified index labels or positions. |
 ## Data type conversion
 | Node | Description |
diff --git a/docs/reference/pandas_kurtosis.md b/docs/reference/pandas_kurtosis.md
index 660fefb..862cc90 100644
--- a/docs/reference/pandas_kurtosis.md
+++ b/docs/reference/pandas_kurtosis.md
@@ -14,7 +14,7 @@ which offsets it relative to the kurtosis of a normal distribution.
 ## Output
 | Data type |
 |---|
-| DataFrame |
+| Series |
 
 <HR>
 Category: Summary statistics
diff --git a/docs/reference/pandas_select_rows.md b/docs/reference/pandas_select_rows.md
index b35f471..2b77f2d 100644
--- a/docs/reference/pandas_select_rows.md
+++ b/docs/reference/pandas_select_rows.md
@@ -1,5 +1,5 @@
 # Pandas Select Rows
-Selects specific rows from a pandas DataFrame based on a condition.
+Selects specific rows from a pandas DataFrame based on a condition.  This node internally calls DataFrame.query().
 
 ## Input
 | Name | Data type |
diff --git a/docs/reference/pandas_skew.md b/docs/reference/pandas_skew.md
index ccf91c5..2f6514b 100644
--- a/docs/reference/pandas_skew.md
+++ b/docs/reference/pandas_skew.md
@@ -10,7 +10,7 @@ Computes the unbiased skewness of the DataFrame.
 ## Output
 | Data type |
 |---|
-| DataFrame |
+| Series |
 
 <HR>
 Category: Summary statistics
diff --git a/modules/pandas_wrapper/pandas_select_rows.py b/modules/pandas_wrapper/pandas_select_rows.py
index a5fb264..780f9d1 100644
--- a/modules/pandas_wrapper/pandas_select_rows.py
+++ b/modules/pandas_wrapper/pandas_select_rows.py
@@ -4,7 +4,7 @@ import pandas as pd
 
 class PandasSelectRows:
     """
-    Selects specific rows from a pandas DataFrame based on a condition.
+    Selects specific rows from a pandas DataFrame based on a condition.  This node internally calls DataFrame.query().
 
     category: Data subset selection
     """