Cita APA

American National Standards Institute, & American National Standards Institute. (1971). Die buttons: Basic ball-lock. New York, New York.

Citación estilo Chicago

American National Standards Institute, y American National Standards Institute. Die Buttons: Basic Ball-lock. New York, New York, 1971.

Cita MLA

American National Standards Institute, y American National Standards Institute. Die Buttons: Basic Ball-lock. New York, New York, 1971.