Note
- O'Brien , Joseph F. 1954 . “Don't Shove, Mr. Knowles—Parliamentary Law is Basically Sound” . Today's Speech , II ( 1 ) January
- 1952 . Parliamentary Law for the Layman . Harper & Brothers ,
- Zelko , Harold P. 1951 . How to Hold Meetings and Conferences , New London, Connecticut : National Foreman's Institute . (pamphlet)