Cita APA (7th ed.)

Ferrell, V., Archbold, E. E., & Cherne, H. M. (2004). Natural remedies encyclopedia (4th edition, completely revised and expanded.). Harvestime Books.

Cita Chicago (17th ed.)

Ferrell, Vance, Edgar E. Archbold, i Harold M. Cherne. Natural Remedies Encyclopedia. 4th edition, completely revised and expanded. Altamont, Tennesse: Harvestime Books, 2004.

Cita MLA (9th ed.)

Ferrell, Vance, et al. Natural Remedies Encyclopedia. 4th edition, completely revised and expanded. Harvestime Books, 2004.