Shapley, D. (1985). The seventh continent: Antarctica in a resource age. Resources for the Future ; Distributed worldwide by Johns Hopkins University Press.
Chicago (17e ed.) BronvermeldingShapley, Deborah. The Seventh Continent: Antarctica in a Resource Age. Washington, D.C. : [Baltimore, Md.]: Resources for the Future ; Distributed worldwide by Johns Hopkins University Press, 1985.
MLA (8e ed.) BronvermeldingShapley, Deborah. The Seventh Continent: Antarctica in a Resource Age. Resources for the Future ; Distributed worldwide by Johns Hopkins University Press, 1985.
Let op: Deze citaties zijn niet altijd 100% accuraat.