Hjort, Johan  1869 - <br/><br/>
The unity of science :  a sketch/ 
by Dr. Johan Hjort 
 - London ,Copenhagen [etc.] :  Gyldedal,  [1920] 
 - vi, 176 p. :  diagrs.;  19 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Philosophy
<br/><br/><label>Dewey Class. No.: </label>501