Cita APA (7a ed.)

Crow, C. (1939). Four hundred million customers. The Albatross.

Cita Chicago Style (17a ed.)

Crow, Carl,‏. Four Hundred Million Customers. Leipzig [u.a.]: The Albatross, 1939.

Cita MLA (9a ed.)

Crow, Carl,‏. Four Hundred Million Customers. The Albatross, 1939.