Fogel Robert William <br/><br/>
Time on the cross   Evidence and methods  a supplem   
Fogel Robert William; Engerman Stanley L 
 - Boston  Little Brown           1974 
 - xi, 267p  cm. 
<br/><br/> Bibliography: P 249-67 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Negroes
<br/><br/><label>Dewey Class. No.: </label>Y73(P6):492.73.N7, L4