Allen, H. R. (1963). Open door to learning: The land-grant system enters its second century. University of Illinois Press.
Цитирование в стиле Чикаго (17-е изд.)Allen, Herman R. Open Door to Learning: The Land-grant System Enters Its Second Century. Urbana: University of Illinois Press, 1963.
Цитирование MLA (8-е изд.)Allen, Herman R. Open Door to Learning: The Land-grant System Enters Its Second Century. University of Illinois Press, 1963.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.