Cita APA (7th ed.)

Hood, R. 1., & Hill, P. C. (1954). How the earth is made. Oxford University Press.

Cita Chicago (17th ed.)

Hood, Ralph 1905, i Peter C. Hill. How the Earth Is Made. New York: Oxford University Press, 1954.

Cita MLA (9th ed.)

Hood, Ralph 1905, i Peter C. Hill. How the Earth Is Made. Oxford University Press, 1954.