Style de citation APA (7e éd.)

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

Style de citation Chicago (17e éd.)

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

Style de citation MLA (9e éd.)

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