Cita APA

Smith, G. H. (1965). Conservation of natural resources (3a. ed.). New York: J. Wiley.

Citación estilo Chicago

Smith, Guy Harold. Conservation of Natural Resources. 3a. ed. New York: J. Wiley, 1965.

Cita MLA

Smith, Guy Harold. Conservation of Natural Resources. 3a. ed. New York: J. Wiley, 1965.