Publisher
- Wissenschaftliche Buchgesellschaft 3
- Association des amis de la Revue de géographie de Lyon 2
- Devlet İstatistik Enstitüsü (Turkey) 2
- Gazi Üniversitesi. İktisadi Bölümü 2
- Geological Survey (U.S.) 2
- International Association of Hydrological Sciences 2
- MEI Publications 2
- Presses universitaires de France 2
- Trud 2
- Turkey. Enerji ve Tabiı̂ Kaynaklar Bakanlığı 2
- Al-Jamaheer Press House 1
- American Association for the Advancement of Science 1
- American University (Washington, D.C.) 1
- Assembly of Turkish American Associations 1
- Berlin. Technische Universität. Institut für Ausländische Landwirtschaft 1
- Bilkent Üniversitesi 1
- Brigham Young University 1
- Central Treaty Organization 1
- Christian Science Publishing Society 1
- Devlet Planlama Teşkilatı (Turkey) 1