APA (7th ed.) Citation

Jacobson, K. I., & Mannheim, L. A. (1969). Enlarging (Twentieth revised edition.). Amphoto.

Chicago Style (17th ed.) Citation

Jacobson, Kurt I., and L. A. Mannheim. Enlarging. Twentieth revised edition. New York: Amphoto, 1969.

MLA (9th ed.) Citation

Jacobson, Kurt I., and L. A. Mannheim. Enlarging. Twentieth revised edition. Amphoto, 1969.

Warning: These citations may not always be 100% accurate.