APA (7th ed.) Citation

Skou, P. (1986). The geometroid moths of North Europe: (Lepidoptera, Drepanidae and Geometridae). E.J. Brill/Scandinavian Science Press.

Chicago Style (17th ed.) Citation

Skou, Peder. The Geometroid Moths of North Europe: (Lepidoptera, Drepanidae and Geometridae). Leiden: E.J. Brill/Scandinavian Science Press, 1986.

MLA (9th ed.) Citation

Skou, Peder. The Geometroid Moths of North Europe: (Lepidoptera, Drepanidae and Geometridae). E.J. Brill/Scandinavian Science Press, 1986.