Não informado. (1985). Geology Today. Blackwell Scientific Publications.
Style de citation Chicago (17e éd.)Não informado. Geology Today. Oxford, Inglaterra: Blackwell Scientific Publications, 1985.
Style de citation MLA (8e éd.)Não informado. Geology Today. Blackwell Scientific Publications, 1985.
Attention : ces citations peuvent ne pas être correctes à 100%.