Elkins, R. Bee pollen, royal jelly, propolis and honey. Pleasant Grove: Woodland Publishing.
Chicago Stili AlıntıElkins, Rita. Bee Pollen, Royal Jelly, Propolis and Honey. Pleasant Grove: Woodland Publishing.
MLA AlıntıElkins, Rita. Bee Pollen, Royal Jelly, Propolis and Honey. Pleasant Grove: Woodland Publishing.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..