Ko, S. C., Kim, J. G., & Shim, M. O. (2014). Agricutural extension system in Korea: Lessons from 1962 to 1997. Korea: Hyusung University.
استشهاد بنمط شيكاغوKo, Soon Chul., Jin Goon Kim, و Mi Ok Shim. Agricutural Extension System in Korea: Lessons From 1962 to 1997. Korea: Hyusung University, 2014.
MLA استشهادKo, Soon Chul., Jin Goon Kim, و Mi Ok Shim. Agricutural Extension System in Korea: Lessons From 1962 to 1997. Korea: Hyusung University, 2014.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.