Cita APA (7a ed.)

Holmen, M. (1987). The aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark. I, GyrinidaeHaliplidae and Noteridae. Brill.

Cita Chicago Style (17a ed.)

Holmen, Mogens. The Aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark. I, GyrinidaeHaliplidae and Noteridae. Leiden [etc.]: Brill, 1987.

Cita MLA (9a ed.)

Holmen, Mogens. The Aquatic Adephaga (Coleoptera) of Fennoscandia and Denmark. I, GyrinidaeHaliplidae and Noteridae. Brill, 1987.