Perrett, H. E. (1984). MONITORING AND EVALUATION OF COMMUNICATION SUPPORT ACTIVITIES ON LAW-COST SANITATION PROJECTS. Unido.
Chicago-стиль цитированияPerrett, Heli E. MONITORING AND EVALUATION OF COMMUNICATION SUPPORT ACTIVITIES ON LAW-COST SANITATION PROJECTS. Unido, 1984.
MLA-цитированиеPerrett, Heli E. MONITORING AND EVALUATION OF COMMUNICATION SUPPORT ACTIVITIES ON LAW-COST SANITATION PROJECTS. Unido, 1984.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.