Cita APA (7th ed.)

Abrams, A. (1964). Unfinished tasks in the behavioral sciences. Williams & Wilkins.

Cita Chicago (17th ed.)

Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Baltimore: Williams & Wilkins, 1964.

Cita MLA (9th ed.)

Abrams, Arnold. Unfinished Tasks in the Behavioral Sciences. Williams & Wilkins, 1964.