APA
Cronbach L. J., . (1984). Essentials of psychological testing 4th ed. Cambridge: Harper & Row.
Chicago
Cronbach Lee J, . 1984. Essentials of psychological testing 4th ed. Cambridge: Harper & Row.
Harvard
Cronbach L. J., . (1984). Essentials of psychological testing 4th ed. Cambridge: Harper & Row.
MLA
Cronbach Lee J, . Essentials of psychological testing 4th ed. Cambridge: Harper & Row. 1984.