APA استشهاد

Purday, H. . .. (1949). Streamline flow (1.). Constable and Company Ltd.

استشهاد بنمط شيكاغو

Purday, H.F.P. Streamline Flow. 1. London: Constable and Company Ltd, 1949.

MLA استشهاد

Purday, H.F.P. Streamline Flow. 1. Constable and Company Ltd, 1949.