APA

Jones C. F., Darkernwald G. G., . (1954). Economic geography. New York: Macmillan Co.

Chicago

Jones Clarence Fielden, Darkernwald Gordon Gerald, . 1954. Economic geography. New York: Macmillan Co.

Harvard

Jones C. F., Darkernwald G. G., . (1954). Economic geography. New York: Macmillan Co.

MLA

Jones Clarence Fielden, Darkernwald Gordon Gerald, . Economic geography. New York: Macmillan Co. 1954.