Highland, Harold J. <br/><br/>
The how and why wonder book of planets and interplanetary travel / 
written by Harold J. Highland. 
 - London :  Transworld Publishers,  c1960. 
 - 48 p. : chiefley col. ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Planets.<br/>Interplanetary voyages.<br/>Space flight.<br/>Astronautics.