Gaya APA

Shafer, P. (2011). The Chinese Medicinal herb farm: a cultivator's guide to small-scale organic herb production . U.S.A: Chelse Green Publishing.

Gaya MLA

Shafer, Peg. "The Chinese Medicinal herb farm: a cultivator's guide to small-scale organic herb production". U.S.A: Chelse Green Publishing, 2011. Text.