* {{cite book | last=Caplan | first=Nathan S. | last2=Caplan | first2=Nathan | last3=Whitmore | first3=John K. | last4=Choy | first4=Marcella H. | title=The Boat People and Achievement in America | publisher=University of Michigan Press | publication-place=Ann Arbor | date=1989 | isbn=0-472-09397-5}}
<ref name="r724">{{cite book | last=Caplan | first=Nathan S. | last2=Caplan | first2=Nathan | last3=Whitmore | first3=John K. | last4=Choy | first4=Marcella H. | title=The Boat People and Achievement in America | publisher=University of Michigan Press | publication-place=Ann Arbor | date=1989 | isbn=0-472-09397-5 | page=}}</ref>