Emboden, W. (1979). Narcotic plants: Revised and enlarged. Collier Books.
Chicago-čujuhus (17. p.)Emboden, William. Narcotic Plants: Revised and Enlarged. Collier Books, 1979.
MLA-čujuhus (9. p.)Emboden, William. Narcotic Plants: Revised and Enlarged. Collier Books, 1979.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.