Singh, S. (2004). Manual of reference and information sources. Ashok Vihar, Delhi: B. R. Publishing Corporation.
Trích dẫn kiểu ChicagoSingh, Sewa. Manual of Reference and Information Sources. Ashok Vihar, Delhi: B. R. Publishing Corporation, 2004.
Deismireacht MLASingh, Sewa. Manual of Reference and Information Sources. Ashok Vihar, Delhi: B. R. Publishing Corporation, 2004.
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