Nature1 个月
A survey of the frequencies of Biston betularia (L.) (Lep.) and its melanic forms in Great ...
Adkin, R. 1925–26. Melanism in the Lepidoptera. Some theories and some examples. Proc S Lond Ent Nat Hist Soc, pp. 7–21. Barrett, C G. 1901. B betularia British ...