Metcalf , C. (1962). Destructive and Useful Insects (4th ed.). Tata Mc Graw Hill.
Cita Chicago Style (17a ed.)Metcalf , C.L. Destructive and Useful Insects. 4th ed. New Delhi: Tata Mc Graw Hill, 1962.
Cita MLA (9a ed.)Metcalf , C.L. Destructive and Useful Insects. 4th ed. Tata Mc Graw Hill, 1962.
Precaución: Estas citas no son 100% exactas.