Quiason, S. (1968). Pharmacognostical studies of four species of alkaloid-bearing medicinal plants in the family apocynaceae.
Lua i Stíl Chicago (17ú heag.)Quiason, Sonia. Pharmacognostical Studies of Four Species of Alkaloid-bearing Medicinal Plants in the Family Apocynaceae. 1968.
Lua MLA (9ú heag.)Quiason, Sonia. Pharmacognostical Studies of Four Species of Alkaloid-bearing Medicinal Plants in the Family Apocynaceae. 1968.
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