Cita APA

Jackson, E., Geiger, A., & Vanderslice, R. D. (1985). German made simple (revised edition.). New York: Made Simple Books.

Citación estilo Chicago

Jackson, Eugene, Adolph Geiger, y Robert D. Vanderslice. German Made Simple. revised edition. New York: Made Simple Books, 1985.

Cita MLA

Jackson, Eugene, Adolph Geiger, y Robert D. Vanderslice. German Made Simple. revised edition. New York: Made Simple Books, 1985.