National Council of Applied Economic Research. (1962). Techno-economic survey of Punjab.
Chicago-viite (17. p.)National Council of Applied Economic Research. Techno-economic Survey of Punjab. New Delhi, 1962.
MLA-viite (9. p.)National Council of Applied Economic Research. Techno-economic Survey of Punjab. 1962.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.