Cita APA (7th ed.)

Black, R. M. (1970). The elements of palaeontology (2nd ed.). U.Pr.

Cita Chicago (17th ed.)

Black, Rhona M. The Elements of Palaeontology. 2nd ed. Cambridge: U.Pr, 1970.

Cita MLA (9th ed.)

Black, Rhona M. The Elements of Palaeontology. 2nd ed. U.Pr, 1970.