Roy, A.E., Astronomy: Principles and Practice - 4th ed. - U.K. Institute of Physics Publishing, c2003. - xxiii, 475 P: [A16] Following book also have Appendix A1,A2,A2 &A4 from Pg. No. 454 to 456 ISBN: 0750309172 Dewey Class. No.: 520 / ROY/AST