APA استشهاد

Whiting,D P. (1966). Finance of foreign trade (4.). Macdonald and Evans.

استشهاد بنمط شيكاغو

Whiting,D P. Finance of Foreign Trade. 4. Plymouth: Macdonald and Evans, 1966.

MLA استشهاد

Whiting,D P. Finance of Foreign Trade. 4. Macdonald and Evans, 1966.