Punmia, B. C. (1975). Surveying V.2. Standared book House.
Dyfyniad Arddull ChicagoPunmia, B C. Surveying V.2. Delhi: Standared book House, 1975.
Dyfyniad MLAPunmia, B C. Surveying V.2. Standared book House, 1975.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.