Oxford Ornithological Society. Report of the Oxford Ornithological Society on the birds of Oxfordshire and Berkshire. Oxford Ornithological Society.
Citace podle Chicago (17th ed.)Oxford Ornithological Society. Report of the Oxford Ornithological Society on the Birds of Oxfordshire and Berkshire. Oxford: Oxford Ornithological Society.
Citace podle MLA (8th ed.)Oxford Ornithological Society. Report of the Oxford Ornithological Society on the Birds of Oxfordshire and Berkshire. Oxford Ornithological Society.
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