The need for coordinated ground-based observations of Halley's comet  proceedings of the ESO workshop Paris, France, 29-30 April 1982 
edited by P. Veron, Festou M. and Kjar K.                                                     
 - FRG  European Southern Observatory  1982 
 - xii, 309p. 
<br/><br/><label>ISBN: </label>3-923524-14-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy and astrophysics thesaurus<br/>Comet Halley
<br/><br/><label>Universal Decimal Class. No.: </label>523.64(063)  / THE