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Frost & Sullivan
Devlet Planlama Teşkilatı (Turkey). Veteriner İlaç ve Hammaddeleri Sanayii Alt Komisyonu.
American Veterinary Supply Co
Royal Pharmaceutical Society of Great Britain
Stephen A. Ritt
James D. Greer
Pharmscience
Jensen-Salsbery Laboratories
John Reynders & Co
United States. Agricultural Research Service
Medical Economics Research Group
United States. Congress. Senate. Committee on Agriculture and Forestry
Edward Headlam Greenhow
Dorothy Kroll
Harry V. Hagstad