APA استشهاد

Lieth, H. [., & Whittaker, R. H. [. (1975). Primary productivity of the biosphere. Springer-verlag.

استشهاد بنمط شيكاغو

Lieth, Helmut [ed.], و Robert H. [ed.] Whittaker. Primary Productivity of the Biosphere. New York: Springer-verlag, 1975.

MLA استشهاد

Lieth, Helmut [ed.], و Robert H. [ed.] Whittaker. Primary Productivity of the Biosphere. Springer-verlag, 1975.