Astanin, L. P., & Blagosklonov, K. N. (1983). Conservation of nature. Progress publishers.
Chicago Edition CitationAstanin, L P., and K N. Blagosklonov. Conservation of Nature. Moscow: Progress publishers, 1983.
MLA引文Astanin, L P., and K N. Blagosklonov. Conservation of Nature. Progress publishers, 1983.
警告:這些引文格式不一定是100%准確.