00581cam a22002051 4500 ne 63002186 DLC 20260227111751.0 810507m19621963ua a 000 0 egyr ne 63002186 (OCoLC)7397513 DLC MnM DLC premarc QA303 .S52 Sharīf, Ramaḍān Amīn. Mabādiʼ al-tafāḍul wa-al-takāmul. Ramaḍān Amīn al-Sharīf. Cairo, Dār al-Nahḍah al-ʻArabīyah [1962-63] 226 p. illus. 23 cm. Calculus. 46344 46344