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.
Chicago-referens (17:e uppl.)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.
MLA-referens (8:e uppl.)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.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.