APA引文

Chopra, G. L. (1977). The Punjab as a sovereign state, 1799-1839. al-Biruni.

Chicago Style (17th ed.) Citation

Chopra, Gulshan Lall. The Punjab as a Sovereign State, 1799-1839. Lahore: al-Biruni, 1977.

MLA引文

Chopra, Gulshan Lall. The Punjab as a Sovereign State, 1799-1839. al-Biruni, 1977.