Jenner, J. V. (1996). Birdwatching: Tips, techniques, and equipment for understanding and observing birds. Friedman/Fairfax Publishers.
Παραπομπή σε μορφή Chicago (17η εκδ.)Jenner, Janann V. Birdwatching: Tips, Techniques, and Equipment for Understanding and Observing Birds. New York: Friedman/Fairfax Publishers, 1996.
Παραπομπή σε μορφή MLA (9th εκδ.)Jenner, Janann V. Birdwatching: Tips, Techniques, and Equipment for Understanding and Observing Birds. Friedman/Fairfax Publishers, 1996.
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