Cita APA (7th ed.)

McDonnell, K. (1968). Enquiring into the earth. Longmans.

Cita Chicago (17th ed.)

McDonnell, K.S. Enquiring into the Earth. Melbourne: Longmans, 1968.

Cita MLA (9th ed.)

McDonnell, K.S. Enquiring into the Earth. Longmans, 1968.