Kovalchuk, O. (2010). The elk (Alces alces L.) as a part of former and modern fauna of the Sumy region: Changes of number and its causes.
Чикаго стиль цитування (17-те видання)Kovalchuk, O. The Elk (Alces Alces L.) as a Part of Former and Modern Fauna of the Sumy Region: Changes of Number and Its Causes. 2010.
Стиль цитування MLA (8-ме видання)Kovalchuk, O. The Elk (Alces Alces L.) as a Part of Former and Modern Fauna of the Sumy Region: Changes of Number and Its Causes. 2010.
Попередження: стилі цитування не завжди правильні на всі 100%.