Richards, Oscar White,  1902- <br/><br/>
The effective use and proper care of the microscope / 
by Oscar W. Richards 
 - Buffalo, N. Y. :  American Optical,  1958 
 - 63 p. :  ill. ;  19 cm. 
<br/><br/><label>LCCN: </label>88-298516 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Microscope and microscopy