Title: al- Sijill al-ʻilmī lil-Muʼtamar al-Zirāʼī al-Awwal li-ʻUlamāʼ al-Muslimīn, al-Riyāḍ 1-5 Jumādá al-Ūlá, 1397 H/19-23 Abrīl 1977 M
Subjects: Agriculture, Congresses
Places: Islamic countries