Hunter, Marcus Charles Inman. <br/><br/>
Rotary valve engines.  A practical treatise on the principles of rotary valves, with examples of application to the early gas engine, the steam engine, and to modern petrol motors. 

 - London :   New York :   Hutchinson's Scientific and Technical Publications  [1947] 
 - 216 p.  illus., diagrs.  22 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>VALVULAS<br/>MOTORES DE COMBUSTION INTERNA<br/>MAQUINAS DE VAPOR
<br/><br/><label>Universal Decimal Class. No.: </label>621.43