Archives du mot-clé complex

Strange and often complex

Lincolm Coles Pettit, Introductory Zoology, Saint Louis, The C.V. Mosby Company, 1962, p. 226.

Franklin Russell, Watchers at the pond, New-York, Knopf, 1961.

Hilda T. Harpster, The insect world, Ill. Zhenya Gay, New-York, The Viking Press, 1947,
pp. 158-159.

Henry R. Linville & Henry A. Kelly, A text-Book in General Zoology, Boston, Gin & Company, 1906, p. 105.