APA-referens (7:e uppl.)

Darwin, F., & Acton, E. H. (1895). Practical physiology of plants (2nd ed.). University press.

Chicago-referens (17:e uppl.)

Darwin, Francis, och Edward Hamilton Acton. Practical Physiology of Plants. 2nd ed. Cambridge: University press, 1895.

MLA-referens (8:e uppl.)

Darwin, Francis, och Edward Hamilton Acton. Practical Physiology of Plants. 2nd ed. University press, 1895.