Rerkrai, D. (1977). A comparison of two types of extension workers in Thailand according to certain aspects of their job [microform]. Photoduplication Service. University of the Philippines Library.
Citace podle Chicago (17th ed.)Rerkrai, Direk. A Comparison of Two Types of Extension Workers in Thailand According to Certain Aspects of Their Job [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Citace podle MLA (9th ed.)Rerkrai, Direk. A Comparison of Two Types of Extension Workers in Thailand According to Certain Aspects of Their Job [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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