Thompson, G. R. (1999). Earth science and the environment (2nd ed.). Harcourt Brace College Publishers.
Chicago (17e ed.) BronvermeldingThompson, Graham R. Earth Science and the Environment. 2nd ed. Fort Worth: Harcourt Brace College Publishers, 1999.
MLA (9e ed.) BronvermeldingThompson, Graham R. Earth Science and the Environment. 2nd ed. Harcourt Brace College Publishers, 1999.
Let op: Deze citaties zijn niet altijd 100% accuraat.