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Cálculo de concerto armado ; Vol. 2
Langendonck, Telemaco van, (1950)
Beton in den USA
Walz, Kurt, (1962)
Aktiebolaget Skånska Cementgjuteriet : 1887-1937 ; en återblick på femtio års verksamhet
Hellström, Carl, (1937)
A bibliography of the Sudan : 1938 - 1958
Naṣrī, 'Abd-ar-Raḥmān, (1962)
Educational policy and the employment problem in the Sudan : Development Studies and Research Centre, Faculty of Economic & Social Studies, University of Khartoum
Beshir, M. O., (1977)
Dissertation abstracts, University of Khartoum 1958-1975
(1975)