ʻAfīfī, Muḥammad Yūsuf Muḥammad. Naẓarīyat al-ālāt / taʼlīf Muḥammad Yūsuf Muḥammad ʻAfīfī. - al-Qāhirah : Maktabat al-Nahdat al-Miṣrīyah, 1963- - v. ; 24 cm. LCCN: ne 63002288 Subjects--Topical Terms: Machinery.Mechanics, Applied. LC Class. No.: TJ170 / .A35