Hajela, T. N. (1994). Cooperation principles , problems and practice. Konark Publishers Pvt Ltd.
シカゴスタイル引用形Hajela, T N. Cooperation Principles , Problems and Practice. New Delhi: Konark Publishers Pvt Ltd, 1994.
MLA引用形式Hajela, T N. Cooperation Principles , Problems and Practice. Konark Publishers Pvt Ltd, 1994.
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