Cita APA (7a ed.)

Western Newspaper Union, otros. (1938). First group sales meeting of all branch managers and executives of Western Newspaper Union: Edgewater Beach Hotel, Chicago, March 31, April 1 and 2, 1938. [s.n.].

Cita Chicago Style (17a ed.)

Western Newspaper Union, otros. First Group Sales Meeting of All Branch Managers and Executives of Western Newspaper Union: Edgewater Beach Hotel, Chicago, March 31, April 1 and 2, 1938. [S.l.]: [s.n.], 1938.

Cita MLA (9a ed.)

Western Newspaper Union, otros. First Group Sales Meeting of All Branch Managers and Executives of Western Newspaper Union: Edgewater Beach Hotel, Chicago, March 31, April 1 and 2, 1938. [s.n.], 1938.