Cita APA (7a ed.)

Hegner, R. W. (1933). Invertebrate zoology (1st.ed.). Macmillan.

Cita Chicago Style (17a ed.)

Hegner, Robert W. Invertebrate Zoology. 1st.ed. New York: Macmillan, 1933.

Cita MLA (9a ed.)

Hegner, Robert W. Invertebrate Zoology. 1st.ed. Macmillan, 1933.