Source: Southwestern Telephone News (St. Louis: Southwestern Bell Telephone Co.), September 1914-December 1916 Location: St.L. / 05 / So89
Last Name:	Muckel
First Name:	John
Middle Name:	A.
Volume:	3
Issue:	3
Date of Publication:	November 1916
Page:	72-73
Remarks:	article by, titled "Collecting Hard Accounts"