Allen, H. R. (1963). Open door to learning: The land-grant system enters its second century. University of Illinois Press.
Chicagoスタイル(17版)引用形式Allen, Herman R. Open Door to Learning: The Land-grant System Enters Its Second Century. Urbana: University of Illinois Press, 1963.
MLA(9版)引用形式Allen, Herman R. Open Door to Learning: The Land-grant System Enters Its Second Century. University of Illinois Press, 1963.
警告: この引用は必ずしも正確ではありません.