APA (7th ed.) Citation

Hellén, W. (1971). Die Scelioninen Finnlands: (Hymenoptera: Proctotrupoidea).

Chicago Style (17th ed.) Citation

Hellén, Wolter. Die Scelioninen Finnlands: (Hymenoptera: Proctotrupoidea). Helsinki, 1971.

MLA (9th ed.) Citation

Hellén, Wolter. Die Scelioninen Finnlands: (Hymenoptera: Proctotrupoidea). 1971.

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