Skinner, B. F. 1904-1990., Cumulative record : a selection of papers / B.F. Skinner. - third edition. - New York : Appleton-Century-Crofts, (c)1972. - xi, 604 pages : illistrations ; 24 cm. LCCN: 72078259 Subjects--Topical Terms: Psychology.Human behavior. LC Class. No.: BF21 / .C868 1972