Utevskaya, О. (1998). Analysis of Reproductive Ability of the Medicinal Leech (Hirudo medicinalis) Bred under Laboratory Conditions. Вестник зоологии.
Chicago-Zitierstil (17. Ausg.)Utevskaya, О.M. "Analysis of Reproductive Ability of the Medicinal Leech (Hirudo Medicinalis) Bred Under Laboratory Conditions." Вестник зоологии 1998.
MLA-Zitierstil (8. Ausg.)Utevskaya, О.M. "Analysis of Reproductive Ability of the Medicinal Leech (Hirudo Medicinalis) Bred Under Laboratory Conditions." Вестник зоологии, 1998.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.