APA (7th ed.) Citation

Ossiannilsson, F. (1992). The Psylloidea (Homoptera) of Fennoscandia and Denmark. E.J. Brill.

Chicago Style (17th ed.) Citation

Ossiannilsson, F. The Psylloidea (Homoptera) of Fennoscandia and Denmark. Leiden: E.J. Brill, 1992.

MLA (9th ed.) Citation

Ossiannilsson, F. The Psylloidea (Homoptera) of Fennoscandia and Denmark. E.J. Brill, 1992.

Warning: These citations may not always be 100% accurate.