Cita APA (7a ed.)

Askew, R. R. (1987). The dragonflies of Europe. Harley.

Cita Chicago Style (17a ed.)

Askew, R. R. The Dragonflies of Europe. Colchester: Harley, 1987.

Cita MLA (9a ed.)

Askew, R. R. The Dragonflies of Europe. Harley, 1987.