Proctor, Mary <br/><br/>
Comets :  Their Nature and place in the science of astronomy / 
Mary Proctor, A.C.D.Crommelin 
 - London :  The Technical Press Ltd,  1937 
 - 204 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Astronomy
<br/><br/><label>Subjects--Index Terms: </label>Comets 
<br/><br/><label>Dewey Class. No.: </label>B1102P93f401