Fauna of Russia and Adjacent Countries
Echinodermata. Vol.1: Echinoidea. By A. M. D'yakonov. Translated from the Russian. Pp. iv + 265. (Israel Program for Scientific Publications: Jerusalem. Distributed in the UK by H. A. Humphrey: London, July 1969.) 120s.
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CLARK, A. Russian Sea Urchins. Nature 223, 980 (1969). https://doi.org/10.1038/223980b0
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DOI: https://doi.org/10.1038/223980b0