TY - GEN AU - Ronan, Colin TI - Amature Astronomy : A Comprehensive and Practical Survey SN - 9780792450047 U1 - 520 RON/Ama PY - 1989/// CY - New York PB - Mallard Press KW - Astronomy N1 - Includes Appendices, Glossary, Bibliography, Index and Acknowledgements ER -