Raphael, S., & Halpert, L. H. (1987). Graduate Record Examination psychology: [the most comprehensive resource for assessing your GRE potential] (5th. ed.). New York: Prentice-Hall.
Παραπομπή Chicago StyleRaphael, Sidney, and L. H. Halpert. Graduate Record Examination Psychology: [the Most Comprehensive Resource for Assessing Your GRE Potential]. 5th. ed. New York: Prentice-Hall, 1987.
Παραπομπή MLARaphael, Sidney, and L. H. Halpert. Graduate Record Examination Psychology: [the Most Comprehensive Resource for Assessing Your GRE Potential]. 5th. ed. New York: Prentice-Hall, 1987.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.