APA aipamena

Vereshchagin, N. K. (1979). Pochemu vymerli mamonty. Nauka, Leningr. otd-nie.

Chicago Style aipamena

Vereshchagin, N. K. Pochemu Vymerli Mamonty. Leningrad: Nauka, Leningr. otd-nie, 1979.

MLA aipamena

Vereshchagin, N. K. Pochemu Vymerli Mamonty. Nauka, Leningr. otd-nie, 1979.