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665

Centuries: 6th century - 7th century - 8th century

Decades: 610s 620s 630s 640s 650s - 660s - 670s 680s 690s 700s 710s

Years: 660 661 662 663 664 - 665 - 666 667 668 669 670


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Conditioning

... Acton, MA: Copley. Skinner, B. F. (1953). Science and human behavior. New York. Macmillan. Skinner, B. F. (1957). Verbal behavior. Englewood Cliffs, NJ: Prentic ...