APA (7th ed.) Citation

Angus, R. B. (1992). Insecta coleoptera, hydrophilidae, helophorinae / by Robert Angus. Gustav Fischer Verlag.

Chicago Style (17th ed.) Citation

Angus, Robert B. Insecta Coleoptera, Hydrophilidae, Helophorinae / by Robert Angus. Stuttgard: Gustav Fischer Verlag, 1992.

MLA (9th ed.) Citation

Angus, Robert B. Insecta Coleoptera, Hydrophilidae, Helophorinae / by Robert Angus. Gustav Fischer Verlag, 1992.

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