Cita APA (7a ed.)

FOSTER STEVEN[A]. (2002). FIELD GUIDE TO WESTERN MEDICINAL PLANTS AND HERBS (2ND ED.). HOUGHTON MIFFIN COMPANY.

Cita Chicago Style (17a ed.)

FOSTER STEVEN[A]. FIELD GUIDE TO WESTERN MEDICINAL PLANTS AND HERBS. 2ND ED. BOSTAN: HOUGHTON MIFFIN COMPANY, 2002.

Cita MLA (9a ed.)

FOSTER STEVEN[A]. FIELD GUIDE TO WESTERN MEDICINAL PLANTS AND HERBS. 2ND ED. HOUGHTON MIFFIN COMPANY, 2002.