APA (7th ed.) Citation

Adam Matthew Digital (Firm). (1939). Box file of Field Bulletins (41). publisher not identified.

Chicago Style (17th ed.) Citation

Adam Matthew Digital (Firm). Box File of Field Bulletins (41). [Place of publication not identified: publisher not identified, 1939.

MLA (9th ed.) Citation

Adam Matthew Digital (Firm). Box File of Field Bulletins (41). publisher not identified, 1939.