APA استشهاد

FAO & UNESCO. (1973). Irrigation, Drainage and Salinity. Hutchinson.

استشهاد بنمط شيكاغو

FAO و UNESCO. Irrigation, Drainage and Salinity. London: Hutchinson, 1973.

MLA استشهاد

FAO و UNESCO. Irrigation, Drainage and Salinity. Hutchinson, 1973.