Research amateur astronomy  proceedings of the symposium on research amateur astronomy held in La Paz,Baja California Sur, Mexico, 7-12 Jul 1991 
edited by S. J. Edberg                                       
 - San Francisco  Astronomical Society of the Pacific  1992 
 - ix, 267p. 
 - ASP conference series; v. 33 .
<br/><br/><label>ISBN: </label>0-937707-52-X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Amateur astronomy<br/>Astronomy and astrophysics thesaurus
<br/><br/><label>Universal Decimal Class. No.: </label>082.2:52  / ASP-33