A good source for you to consult as a start is William H. Hutt's THE 
KEYNESIAN EPISODE: A REASSESSMENT. Indianapolis: Liberty Press, 1979.  
(This 
is a revision of Hutt's KEYNESIANISM: RETROSPECT AND PROSPECT. Chicago: 
Henry Regnery, 1963.) 
Chapter 16 on "The Multiplier" directly relates the banking multiplier to 
the Keynesian one and ties Keynes to F.W.Crick's banking multiplier 
explanation through Keynes's TREATISE ON MONEY. 
 
Sam Bostaph 
University of Dallas