Gaya APA

Williams, P, J, L, B. (2002). Phytoplankton Productivity Carbon Assimilation In Marine And Freshwater Ecosystems . USA: Blackwell.

Gaya MLA

Williams, Peter, J., Le, B.. "Phytoplankton Productivity Carbon Assimilation In Marine And Freshwater Ecosystems". USA: Blackwell, 2002. Text.