Falk, Karl H. <br/><br/>
Falk's graphical solutions to 100000 practical problems / 
Karl H. Falk. 
 - 4th ed. 
 - Columbia :  Columbia Graphs,  1954. 
 - xii, 419 p. :  ill. ;  22 cm. 
<br/><br/> Includes index. 
<br/><br/>337  337 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Nomography (Mathematics).<br/>Engineering--Tables.
<br/><br/><label>Dewey Class. No.: </label>515 / F186g