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Animal health services : finding the balance between public and private delivery
Umali-Deininger, Dina L., (1994)
The balance between public and private sector activities in the delivery of livestock services
Umali-Deininger, Dina L., (1992)
Sistema SELĖKS v rešenii Prodovolʹstvennoj programmy SSSR
Ėrnst, L. K., (1986)