Abrams, A. (1964). Unfinished tasks in the behavioral sciences. Williams & Wilkins.
Cita Chicago Style (17a ed.)Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Baltimore: Williams & Wilkins, 1964.
Cita MLA (9a ed.)Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Williams & Wilkins, 1964.
Precaución: Estas citas no son 100% exactas.