Cita APA

Trewartha, G. T. (1967). Elements of geography. [S.l.]: McGraw-Hill Book.

Citación estilo Chicago

Trewartha, Glenn T. Elements of Geography. [S.l.]: McGraw-Hill Book, 1967.

Cita MLA

Trewartha, Glenn T. Elements of Geography. [S.l.]: McGraw-Hill Book, 1967.