Horton,D, & Ballantyne,P. (1993). Monitoring and evaluating agricultural research: A source book. CAB international.
Παραπομπή Chicago StyleHorton,D, και Ballantyne,P. Monitoring and Evaluating Agricultural Research: A Source Book. CAB international, 1993.
Παραπομπή MLAHorton,D, και Ballantyne,P. Monitoring and Evaluating Agricultural Research: A Source Book. CAB international, 1993.
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