APA
(1992). Global Biogeochemical Cycles. London: Samuel S.Butcher.
Chicago
1992. Global Biogeochemical Cycles. London: Samuel S.Butcher.
Harvard
(1992). Global Biogeochemical Cycles. London: Samuel S.Butcher.
MLA
Global Biogeochemical Cycles. London: Samuel S.Butcher. 1992.