APA-viite (7. p.)

Porter, C. L. (1967). Taxonomy of flowering plants (2nd ed.). Freeman.

Chicago-viite (17. p.)

Porter, C. L. Taxonomy of Flowering Plants. 2nd ed. San Francisco: Freeman, 1967.

MLA-viite (9. p.)

Porter, C. L. Taxonomy of Flowering Plants. 2nd ed. Freeman, 1967.