APA

ZUMBERGE J. H., NELSON C. A., . (1976). Elements of physical geology. New York: John Wiley & Sons.

Chicago

ZUMBERGE James Herbert, NELSON Clemens Arvid, . 1976. Elements of physical geology. New York: John Wiley & Sons.

Harvard

ZUMBERGE J. H., NELSON C. A., . (1976). Elements of physical geology. New York: John Wiley & Sons.

MLA

ZUMBERGE James Herbert, NELSON Clemens Arvid, . Elements of physical geology. New York: John Wiley & Sons. 1976.