Cita APA (7a ed.)

Moeller, J., Hoelzel, A., & Simmons, R. (1970). German today. Houghton Mifflin.

Cita Chicago Style (17a ed.)

Moeller, Jack, Alfred Hoelzel, y Robert Simmons. German Today. Boston [u.a.]: Houghton Mifflin, 1970.

Cita MLA (9a ed.)

Moeller, Jack, et al. German Today. Houghton Mifflin, 1970.