Cita APA (7th ed.)

Harvey, E. N. (1920). Nature of animal light. J.B. Lippincott company.

Cita Chicago (17th ed.)

Harvey, E. Newton. Nature of Animal Light. Philadelphia: J.B. Lippincott company, 1920.

Cita MLA (9th ed.)

Harvey, E. Newton. Nature of Animal Light. J.B. Lippincott company, 1920.