Cita APA (7th ed.)

Brown, G. C. (1981). The inaccessible earth. Allen & Unwin.

Cita Chicago (17th ed.)

Brown, G. C. The Inaccessible Earth. London: Allen & Unwin, 1981.

Cita MLA (9th ed.)

Brown, G. C. The Inaccessible Earth. Allen & Unwin, 1981.