APA (7th ed.) Citation

Krogerus, H. (1954). Investigations on the Lepidoptera of Newfoundland .. [publisher not identified].

Chicago Style (17th ed.) Citation

Krogerus, Harry. Investigations on the Lepidoptera of Newfoundland .. Helsingforsiae: [publisher not identified], 1954.

MLA (9th ed.) Citation

Krogerus, Harry. Investigations on the Lepidoptera of Newfoundland .. [publisher not identified], 1954.

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