Gore, P. J. (2011). Historical geology online laboratory manual. [Georgia Perimeter College].
Chicago (17e ed.) BronvermeldingGore, Pamela J.W. Historical Geology Online Laboratory Manual. [Clarkston, Georgia]: [Georgia Perimeter College], 2011.
MLA (9e ed.) BronvermeldingGore, Pamela J.W. Historical Geology Online Laboratory Manual. [Georgia Perimeter College], 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.