 1969 : Strategic Interaction . Philadelphia : University of Pennsylvania Press . ISBN 0 @-@ 345 @-@ 02804 @-@ X 
 1969 : Strategic Interaction . Philadelphia : University of Pennsylvania Press . ISBN 0 @-@ 345 @-@ 02804 @-@ X 
1969 : Strategic Interaction . Philadelphia : University of Pennsylvania Press . ISBN 0 @-@ 345 @-@ 02804 @-@ X