APA (7th ed.) Citation

Spatenka, K., Starý, B., Holzinger, R., & Gregor, F. (1999). Handbook of palaearctic macrolepidoptera: I, Sesiidae, Clearwing Moths. Gem.

Chicago Style (17th ed.) Citation

Spatenka, Karel, Bohumil Starý, Ruth Holzinger, and František Gregor. Handbook of Palaearctic Macrolepidoptera: I, Sesiidae, Clearwing Moths. Wallingford: Gem, 1999.

MLA (9th ed.) Citation

Spatenka, Karel, et al. Handbook of Palaearctic Macrolepidoptera: I, Sesiidae, Clearwing Moths. Gem, 1999.