Porter, J.G. . <br/><br/>
Comets and Meteor Streams: Vol.II /  Textual Documents 
J.G.Porter. 
 - 1st ed. / 
 - London :  Chapman & Hall ,  1952. 
 - x,123p. :  ill ;  23cm . 
<br/><br/>Index 
<br/><br/><label>Subjects--Index Terms: </label>Meteor Streams G-Mathematics 
<br/><br/><label>Dewey Class. No.: </label>523.56  / P 833 C