Gaya APA

Cas, R, A, F., Wright, J, V. (1998). Volcanic Successions Modern And Ancient . London: Acaemy Diviion f Unwn Hyma Ltd.

Gaya MLA

Cas, R., A., F.., Wright, J., V.. "Volcanic Successions Modern And Ancient". London: Acaemy Diviion f Unwn Hyma Ltd, 1998. Text.