The rains of the Sudan : mechanism & distribution

von Tūm, Mahdī Amīn
Khartoum : Univ. Press, 1975.
Umfang/Format: 48 p. : maps and diagrs. ; 22 cm.

The nature of rainfall over the Sudan and the potentialities for its artifical modification

von Tūm, Mahdī Amīn
African studies seminar series 15
Khartoum : Univ., Fac. of Arts, Sudan Research Unit, 1972.
Umfang/Format: 45 l. of pl. : maps ; 28 cm.