Cita APA (7th ed.)

(1949). The pocket book of old masters (1a. ed.). Pocket Books.

Cita Chicago (17th ed.)

The Pocket Book of Old Masters. 1a. ed. Nueva York: Pocket Books, 1949.

Cita MLA (9th ed.)

The Pocket Book of Old Masters. 1a. ed. Pocket Books, 1949.