APA Citation

Heim, J. M. (1937). Notes and references relating to the history of Philadelphia newspapers [microform]. Philadelphia: [Heim?].

Chicago Style Citation

Heim, John M. Notes and References Relating to the History of Philadelphia Newspapers [microform]. Philadelphia: [Heim?], 1937.

MLA Citation

Heim, John M. Notes and References Relating to the History of Philadelphia Newspapers [microform]. Philadelphia: [Heim?], 1937.

Warning: These citations may not always be 100% accurate.