APA

Redman Nigel, Srevenson Terry & Fanshawe John. (2009). Birds of the Horn of Africa. London: CRHISTOPHER HELM.

Chicago

Redman Nigel, Srevenson Terry and Fanshawe John. 2009. Birds of the Horn of Africa. London: CRHISTOPHER HELM.

Harvard

Redman Nigel, Srevenson Terry and Fanshawe John. (2009). Birds of the Horn of Africa. London: CRHISTOPHER HELM.

MLA

Redman Nigel, Srevenson Terry and Fanshawe John. Birds of the Horn of Africa. London: CRHISTOPHER HELM. 2009.