Sigma Rho <br/><br/>
Ether-technology :  a rational approach to gravity-control / 
 Rational approach to gravity-control. 
by Rho Sigma ; forward [by] astronaut Capt. Edgar D. Mitchell. 
 - Kempton, Ill. :  Adventures Unlimited Press,  1996, c1977. 
 - 107 p. :  ill., ports. ;  23 cm. 
<br/><br/> Reprint of the 1977 ed.  "The Underground classic is back in print!" 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0932813348 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Space flight<br/>Navigation Astronautics<br/>Astronautics<br/>Ether Space<br/>Gravity<br/>Unidentified flying objects
<br/><br/><label>LC Class. No.: </label>TL790