APA (7th ed.) Citation

Traugott-Olsen, E., & Schmidt Nielsen, E. (1977). The Elachistidae (Lepidoptera) of Fennoscandia and Denmark. Scandinavian Science Press.

Chicago Style (17th ed.) Citation

Traugott-Olsen, E., and E. Schmidt Nielsen. The Elachistidae (Lepidoptera) of Fennoscandia and Denmark. Klampenborg, Denmark: Scandinavian Science Press, 1977.

MLA (9th ed.) Citation

Traugott-Olsen, E., and E. Schmidt Nielsen. The Elachistidae (Lepidoptera) of Fennoscandia and Denmark. Scandinavian Science Press, 1977.