APA引文

Ko, S. C., Kim, J. G., & Shim, M. O. (2014). Agricutural extension system in Korea: Lessons from 1962 to 1997. Korea: Hyusung University.

Trích dẫn kiểu Chicago

Ko, Soon Chul., Jin Goon Kim, và Mi Ok Shim. Agricutural Extension System in Korea: Lessons From 1962 to 1997. Korea: Hyusung University, 2014.

MLA引文

Ko, Soon Chul., Jin Goon Kim, và Mi Ok Shim. Agricutural Extension System in Korea: Lessons From 1962 to 1997. Korea: Hyusung University, 2014.