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Contribution from the Zoological Laboratory of the University of Michigan.
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Shull, A.F. Order of embryonic determination of the differential features of gamic and parthenogenetic aphids. Z.Ver-erbungslehre 57, 92–111 (1931). https://doi.org/10.1007/BF01739699
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DOI: https://doi.org/10.1007/BF01739699