EUROPA PUBLICATIONS LIMITDE. (1976). The world of learning 1976- 77 (ed.27.). Europa Publications limited.
Chicagoスタイル(17版)引用形式EUROPA PUBLICATIONS LIMITDE. The World of Learning 1976- 77. ed.27. London: Europa Publications limited, 1976.
MLA(9版)引用形式EUROPA PUBLICATIONS LIMITDE. The World of Learning 1976- 77. ed.27. Europa Publications limited, 1976.
警告: この引用は必ずしも正確ではありません.