Pol, Balthasar van der,  1889- <br/><br/>
Operational calculus based on the two-sided Laplace integral/ 
Bal th. can der pol and H. Bremmer. 
 - Cambridge :  University Press ,  1950. 
 - xiii, 415 p. :  diagrs. ;  26 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus, Operational.
<br/><br/><label>Dewey Class. No.: </label>517.7 POL