APA aipamena

Metcalf, C. L., & Flint, W. P. (1967). Destructive and useful insects. McGraw-Hill.

Chicago Style aipamena

Metcalf, C. L., and W. P. Flint. Destructive and Useful Insects. McGraw-Hill, 1967.

MLA aipamena

Metcalf, C. L., and W. P. Flint. Destructive and Useful Insects. McGraw-Hill, 1967.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.