Emboden, W. (1979). Narcotic plants: Revised and enlarged. Collier Books.
Lua i Stíl Chicago (17ú heag.)Emboden, William. Narcotic Plants: Revised and Enlarged. Collier Books, 1979.
Lua MLA (9ú heag.)Emboden, William. Narcotic Plants: Revised and Enlarged. Collier Books, 1979.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.