John Calvin's Institutes his  opus magnum. 

 - S.A :  IRS,  c1986. 
 - 528p. 
 - Institute for reformational studies collection no.28 .
<br/><br/><label>ISBN: </label>0869908839 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Theology, Doctrinal.
<br/><br/><label>LC Class. No.: </label>BX9424.5  / .I6