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Willett, John B. (Nombre personal)
Rogosa, D. Assessing the stability of teacher behavior, 1984: t.p. (John B. Willett) p. 1 (Stanford U., School of Ed.)
Estimating the impact of the GED on the earnings of young droupouts ... c1998: t.p. (John B. Willett) abstract p. (Harvard Grad. Sch. of Educ., Cambridge, MA)