Cita APA (7th ed.)

Applebaum, S. (1960). The belwin string builder. Belwin Mills.

Cita Chicago (17th ed.)

Applebaum, Samuel. The Belwin String Builder. Nueva York: Belwin Mills, 1960.

Cita MLA (9th ed.)

Applebaum, Samuel. The Belwin String Builder. Belwin Mills, 1960.