Snedden, D. S. (1910). The problem of vocational education. Houghton Mifflin company.
Chicagoスタイル(17版)引用形式Snedden, David Samuel. The Problem of Vocational Education. Boston, New York [etc.]: Houghton Mifflin company, 1910.
MLA(9版)引用形式Snedden, David Samuel. The Problem of Vocational Education. Houghton Mifflin company, 1910.
警告: この引用は必ずしも正確ではありません.