Cita APA (7a ed.)

Challinor, J. (1978). A dictionary of geology (5th ed.). University of Wales Press.

Cita Chicago Style (17a ed.)

Challinor, John. A Dictionary of Geology. 5th ed. Cardiff: University of Wales Press, 1978.

Cita MLA (8a ed.)

Challinor, John. A Dictionary of Geology. 5th ed. University of Wales Press, 1978.