@book{49240,
	author = {Riyāḍ, Ismāʻīl.},
	title = {Musābaqat al-tafawwuq al-ijtimāʻī,},
	publisher = {Maktabat al-Qāhirat al-Ḥadīthah,},
	year = {1966.},
	address = {Cairo,}
}