APA (7th ed.) Citation

Lewington, A., & World Wide Fund For Nature. (1993). Medicinal plants and plant extracts: A review of their importation into Europe. TRAFFIC International.

Chicago Style (17th ed.) Citation

Lewington, Anna, and World Wide Fund For Nature. Medicinal Plants and Plant Extracts: A Review of Their Importation into Europe. Cambridge, UK: TRAFFIC International, 1993.

MLA (9th ed.) Citation

Lewington, Anna, and World Wide Fund For Nature. Medicinal Plants and Plant Extracts: A Review of Their Importation into Europe. TRAFFIC International, 1993.