Extension, Education and Communication Service, Research, Extension and Training Division, Sustainable Development Department, & Rivera, W. M. (2003). Agricultural extension, rural development and the food security challenge.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रExtension, Education and Communication Service, Extension and Training Division Research, Sustainable Development Department, और William McLeod Rivera. Agricultural Extension, Rural Development and the Food Security Challenge. 2003.
एमएलए (9वां संस्करण) प्रशस्ति पत्रExtension, Education and Communication Service, et al. Agricultural Extension, Rural Development and the Food Security Challenge. 2003.
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