British Geomorphological Research Group. (1981). Earth Surface Processes and Landforms. John Wiley & Sons.
Chicago (17e ed.) BronvermeldingBritish Geomorphological Research Group. Earth Surface Processes and Landforms. Sussex, Inglaterra: John Wiley & Sons, 1981.
MLA (8e ed.) BronvermeldingBritish Geomorphological Research Group. Earth Surface Processes and Landforms. John Wiley & Sons, 1981.
Let op: Deze citaties zijn niet altijd 100% accuraat.