Cita APA

Georgacarakos, G., & Smith, R. (1979). Elementary formal logic. McGraw-Hill.

Citación estilo Chicago

Georgacarakos, G.N, and Robin Smith. Elementary Formal Logic. New York: McGraw-Hill, 1979.

Cita MLA

Georgacarakos, G.N, and Robin Smith. Elementary Formal Logic. McGraw-Hill, 1979.