Cita APA (7th ed.)

Hutchens, A. R., Tretchikoff , N., & Tretchikoff, N. K. (1974). Indian herbalogy of North America (5th ed.). Merco.

Cita Chicago (17th ed.)

Hutchens, Alma R., N.G Tretchikoff , i Natalie K. Tretchikoff. Indian Herbalogy of North America. 5th ed. Canada: Merco, 1974.

Cita MLA (9th ed.)

Hutchens, Alma R., et al. Indian Herbalogy of North America. 5th ed. Merco, 1974.