APA (7th ed.) Citation

Challinor, J. (1973). A dictionary of geology (4.ed.). Univ. of Wales Press.

Chicago Style (17th ed.) Citation

Challinor, John. A Dictionary of Geology. 4.ed. Cardiff: Univ. of Wales Press, 1973.

MLA (9th ed.) Citation

Challinor, John. A Dictionary of Geology. 4.ed. Univ. of Wales Press, 1973.