R. S. Landa <br/><br/>
Mechanical development investigations :  interim report / 
Landa, R. S 
 - Washington, D. C. :  United States Government Printing Office,  1977 
 - Various pagings ;  28 cm. 
 - Fosil energy series ;  no. 11-A2 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mechanical engineering<br/>Mechanical movements
<br/><br/><label>Dewey Class. No.: </label>621