SINGH, U. (2020). Pharmacognosy. Ishwar Books.
Chicago-čujuhus (17. p.)SINGH, Urmila. Pharmacognosy. Ishwar Books, 2020.
MLA-čujuhus (9. p.)SINGH, Urmila. Pharmacognosy. Ishwar Books, 2020.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.