Field Ornithology Group of Sri Lanka. (2006). Siyoth: Journal of the Field Ornithology Group of Sri Lanka. Field Ornithology Group of Sri Lanka, Dept. of Zoology, University of Colombo.
Citace podle Chicago (17th ed.)Field Ornithology Group of Sri Lanka. Siyoth: Journal of the Field Ornithology Group of Sri Lanka. Colombo: Field Ornithology Group of Sri Lanka, Dept. of Zoology, University of Colombo, 2006.
Citace podle MLA (8th ed.)Field Ornithology Group of Sri Lanka. Siyoth: Journal of the Field Ornithology Group of Sri Lanka. Field Ornithology Group of Sri Lanka, Dept. of Zoology, University of Colombo, 2006.
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