Cita APA (7a ed.)

Finch, V. C., Trewartha, G., & Shearer, M. (1941). The earth and its resources: A modern physical geography. s.n..

Cita Chicago Style (17a ed.)

Finch, Vernor C., Glenn Trewartha, y M.H Shearer. The Earth and Its Resources: A Modern Physical Geography. New York: s.n., 1941.

Cita MLA (9a ed.)

Finch, Vernor C., et al. The Earth and Its Resources: A Modern Physical Geography. s.n., 1941.