Cita APA (7a ed.)

Ḥammād, Ḥ. Y. (1970). Ground water potentialities in the African Sahara and the Nile Valley. Beirut Arab University.

Cita Chicago Style (17a ed.)

Ḥammād, Ḥammād Yūsuf. Ground Water Potentialities in the African Sahara and the Nile Valley. [Beirut]: Beirut Arab University, 1970.

Cita MLA (9a ed.)

Ḥammād, Ḥammād Yūsuf. Ground Water Potentialities in the African Sahara and the Nile Valley. Beirut Arab University, 1970.