Basu, Baidyanath Introduction to astrophysics By Baidyanath, Basu, Tanuka Chattopadhyay, and Sudhindra Nath Biswas. - 2nd ed. - Delhi PHI Learning Private Limited 2019 - xviii, 582p. 23.5cm. ISBN: 9788120340718 Subjects--Topical Terms: Astrophysics; Molecular Spectra. Dewey Class. No.: 520 / BAI/I