Cita APA (7th ed.)
Hamilton, W., Bishop, A., & Woolley, A. (1974). The hamlyn guide to minerals,rock and fossils. Hamlyn.
Cita Chicago (17th ed.)
Hamilton, W.R, A.C Bishop, i A.R Woolley. The Hamlyn Guide to Minerals,rock and Fossils. London: Hamlyn, 1974.
Cita MLA (9th ed.)
Hamilton, W.R, et al. The Hamlyn Guide to Minerals,rock and Fossils. Hamlyn, 1974.
Atenció: Aquestes cites poden no estar 100% correctes.