Basu, B. (1997). An Introduction to Astrophysics. Smart Library.
Dyfyniad Arddull ChicagoBasu, B. An Introduction to Astrophysics. New Delhi: Smart Library, 1997.
Dyfyniad MLABasu, B. An Introduction to Astrophysics. Smart Library, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.