Laylah, Muḥammad Kāmil. al-Nuẓum al-siyāsīyah / Muḥammad Kāmil Laylah. - [Cairo] : Dār al-Fikr al-ʻArabī, 1963. - 1177 p. ; 24 cm. Includes bibliographical references. LCCN: ne 64000382 Subjects--Topical Terms: Comparative government. LC Class. No.: JF56 / .L3 1963