APA (7th ed.) Citation

Angus, R. (1992). Insecta, Coleoptera, Hydrophilidae, Helophorinae. Fischer.

Chicago Style (17th ed.) Citation

Angus, Robert. Insecta, Coleoptera, Hydrophilidae, Helophorinae. Stuttgart u.a: Fischer, 1992.

MLA (9th ed.) Citation

Angus, Robert. Insecta, Coleoptera, Hydrophilidae, Helophorinae. Fischer, 1992.

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