Gaya APA

Gerngross, G., Puchta, H. (1992). Pictures in action / Gunter Gerngross, Herbert Puchta . New York: Prentice Hall International.

Gaya MLA

Gerngross, Gunter., Puchta, Herbert. "Pictures in action / Gunter Gerngross, Herbert Puchta". New York: Prentice Hall International, 1992. Textbook.