APA (7th ed.) Citation

Winterbottom, J. M. (1971). A preliminary check list of the birds of South West Africa. S.W.A.Scientific Soc.

Chicago Style (17th ed.) Citation

Winterbottom, J. M. A Preliminary Check List of the Birds of South West Africa. Windhoek: S.W.A.Scientific Soc, 1971.

MLA (9th ed.) Citation

Winterbottom, J. M. A Preliminary Check List of the Birds of South West Africa. S.W.A.Scientific Soc, 1971.