APA

Wittmer W., Buttiker W., . (1979). Fauna of Saudi Arabia. Basle: Cibageigy Ltd.

Chicago

Wittmer W, Buttiker W, . 1979. Fauna of Saudi Arabia. Basle: Cibageigy Ltd.

Harvard

Wittmer W., Buttiker W., . (1979). Fauna of Saudi Arabia. Basle: Cibageigy Ltd.

MLA

Wittmer W, Buttiker W, . Fauna of Saudi Arabia. Basle: Cibageigy Ltd. 1979.