Chopra, G. L. (1977). The Punjab as a sovereign state, 1799-1839. al-Biruni.
Chicago Style aipamenaChopra, Gulshan Lall. The Punjab as a Sovereign State, 1799-1839. Lahore: al-Biruni, 1977.
MLA aipamenaChopra, Gulshan Lall. The Punjab as a Sovereign State, 1799-1839. al-Biruni, 1977.
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