Cita APA (7a ed.)

Gerngross, G., & Puchta, H. (1992). Pictures in action. Prentice Hall.

Cita Chicago Style (17a ed.)

Gerngross, Gunter, y Herbert Puchta. Pictures in Action. New York: Prentice Hall, 1992.

Cita MLA (9a ed.)

Gerngross, Gunter, y Herbert Puchta. Pictures in Action. Prentice Hall, 1992.