APA (7th ed.) Citation

Fridén, F. (1958). Frass-drop frequency in lepidoptera. Almqvist & Wiksell.

Chicago Style (17th ed.) Citation

Fridén, Folke. Frass-drop Frequency in Lepidoptera. Uppsala: Almqvist & Wiksell, 1958.

MLA (9th ed.) Citation

Fridén, Folke. Frass-drop Frequency in Lepidoptera. Almqvist & Wiksell, 1958.