APA Citatie

Duff, P. M. D. (1992). Holmes' Principles of physical geology (4th ed.). ELBS with chapman & hall.

Chicago Style citaat

Duff, P Mcl D. Holmes' Principles of Physical Geology. 4th ed. London: ELBS with chapman & hall, 1992.

MLA citatie

Duff, P Mcl D. Holmes' Principles of Physical Geology. 4th ed. ELBS with chapman & hall, 1992.

Let op: Deze citaties zijn niet altijd 100% accuraat.