Gaya APA

Mumpton, F, A. (1983). Clay and clay minerals: Journal of then clay minerals society (Vol. 31,--No. 5). Amerika: The clay mineral Sociey.

Gaya MLA

Mumpton, Frederick, A.. "Clay and clay minerals: Journal of then clay minerals society". Vol. 31,--No. 5 Amerika: The clay mineral Sociey, 1983. Text.