Cita APA (7th ed.)
Allaby, M. (1990). A dictionary of earth sciences (3rd ed.). Oxford University Press.
Cita Chicago (17th ed.)
Allaby, Michael. A Dictionary of Earth Sciences. 3rd ed. Oxford: Oxford University Press, 1990.
Cita MLA (9th ed.)
Allaby, Michael. A Dictionary of Earth Sciences. 3rd ed. Oxford University Press, 1990.
Atenció: Aquestes cites poden no estar 100% correctes.