Cook, P. J., & Frank, R. H. The economic payoff of attending an Ivy-League institution: Philip J. Cook. Robert H. Frank. Critical white studies : looking behind the mirror.(1997).
Cita Chicago (17th ed.)Cook, Philip J., i Robert H. Frank. "The Economic Payoff of Attending an Ivy-League Institution: Philip J. Cook. Robert H. Frank." Critical White Studies : Looking Behind the Mirror.(1997) .
Cita MLA (8th ed.)Cook, Philip J., i Robert H. Frank. "The Economic Payoff of Attending an Ivy-League Institution: Philip J. Cook. Robert H. Frank." Critical White Studies : Looking Behind the Mirror.(1997), .
Atenció: Aquestes cites poden no estar 100% correctes.