Cita APA (7th ed.)
Watkins, M. B. (1963). Afghanistan: Land in transition. Van Nostrand.
Cita Chicago (17th ed.)
Watkins, Mary Bradley. Afghanistan: Land in Transition. Princeton: Van Nostrand, 1963.
Cita MLA (9th ed.)
Watkins, Mary Bradley. Afghanistan: Land in Transition. Van Nostrand, 1963.
Atenció: Aquestes cites poden no estar 100% correctes.