Metcalf, C. L., & Flint, W. P. (1951). Destructive and useful insects. Their habits and control (3a. ed.). McGraw-Hill.
Citace podle Chicago (17th ed.)Metcalf, Clell Lee, a W. P. Flint. Destructive and Useful Insects. Their Habits and Control. 3a. ed. Nueva York: McGraw-Hill, 1951.
Citace podle MLA (9th ed.)Metcalf, Clell Lee, a W. P. Flint. Destructive and Useful Insects. Their Habits and Control. 3a. ed. McGraw-Hill, 1951.
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