作 者:Threeton, Mark D. ;Ewing, John C. ;Clark, Robert W.
出 处:Online Journal for Workforce Education and Development. 2010 ;4(3):1.
出 版 社:Southern Illinois University Carbondale
文 章 ID:94857097
作 者:Ewing, John C
出 处:NACTA Journal / National Association of Colleges and Teachers of Agriculture. 2004 ;Dec 2004.
出 版 社:National Association of Colleges and Teachers of Agriculture
文 章 ID:43351199