Howarth, T. G., Russwurm, A. D. A., Frohawk, F. W., Davis, R. B., & Howarth, T. G. C. i. g. t. B. b. (1984). Colour identification guide to butterflies of the British Isles (Rev. ed.). Viking.
MLA CitationHowarth, T. G., et al. Colour Identification Guide to Butterflies of the British Isles. Rev. ed. Viking, 1984.
Warning: These citations have been automatically generated and may not always be 100% accurate..