APA

Trewartha G. T., Robinson A. H., Finch V. C. & Hammond E. H. (1967). Physical elements of geography. New York: McGraw-Hill.

Chicago

Trewartha Glenn Thomas, Robinson Arthur Howard, Finch Vernor Clifford and Hammond Edwin Hughes. 1967. Physical elements of geography. New York: McGraw-Hill.

Harvard

Trewartha G. T., Robinson A. H., Finch V. C. and Hammond E. H. (1967). Physical elements of geography. New York: McGraw-Hill.

MLA

Trewartha Glenn Thomas, Robinson Arthur Howard, Finch Vernor Clifford and Hammond Edwin Hughes. Physical elements of geography. New York: McGraw-Hill. 1967.