APA-referens

Hewitt, E. J., & Cutting, C. V. (1968). Recent aspects of nitrogen metabolism in plants. Academic Press.

Chicago-stil citat

Hewitt, E J., och C V. Cutting. Recent Aspects of Nitrogen Metabolism in Plants. London: Academic Press, 1968.

MLA-referens

Hewitt, E J., och C V. Cutting. Recent Aspects of Nitrogen Metabolism in Plants. Academic Press, 1968.