Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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