Singh, G. (1994). Communism in Punjab: A study of the movement up to 1967. Ajanta Publications.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSingh, Gurharpal. Communism in Punjab: A Study of the Movement Up to 1967. Ajanta Publications, 1994.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSingh, Gurharpal. Communism in Punjab: A Study of the Movement Up to 1967. Ajanta Publications, 1994.
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