APA (7th ed.) Citation

Hippa, H., Vilkamaa, P., & Heinakroon, A. (1998). The genus Pseudozygoneura Steffan (Diptera, Sciaridae). Finnish Zoological and Botanical Publ. Board.

Chicago Style (17th ed.) Citation

Hippa, Heikki, Pekka Vilkamaa, and Andreas Heinakroon. The Genus Pseudozygoneura Steffan (Diptera, Sciaridae). Helsinki: Finnish Zoological and Botanical Publ. Board, 1998.

MLA (9th ed.) Citation

Hippa, Heikki, et al. The Genus Pseudozygoneura Steffan (Diptera, Sciaridae). Finnish Zoological and Botanical Publ. Board, 1998.