APA

Challinor J., . (1967). A dictionary of geology. Cardiff: University of Wales.

Chicago

Challinor John, . 1967. A dictionary of geology. Cardiff: University of Wales.

Harvard

Challinor J., . (1967). A dictionary of geology. Cardiff: University of Wales.

MLA

Challinor John, . A dictionary of geology. Cardiff: University of Wales. 1967.