King, Henry C. <br/><br/>
Geared to the stars :  the evolution of planetariums, orreries, and astronomical clocks / 
Henry C. King, in collaboration with John R. Millburn 
 - Toronto :  University of Toronto Press,  1978 
 - 442 p. ;  30 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography : p. 405-442 
<br/><br/><label>ISBN: </label>0802023126 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Planetaria<br/>Astronomical clocks