Cita APA (7a ed.)

Warcup, L. M., Danzer, G. A., Cramer, E. H., & Larson, A. J. (1985). Land and people: A world geography. Scott, Foresman.

Cita Chicago Style (17a ed.)

Warcup, Laura M., Gerald A. Danzer, Eugene H. Cramer, y Albert J. Larson. Land and People: A World Geography. Glenview, Ill: Scott, Foresman, 1985.

Cita MLA (9a ed.)

Warcup, Laura M., et al. Land and People: A World Geography. Scott, Foresman, 1985.