9780387903262 | Springer Verlag, July 1, 1978, cover price $99.00 | also contains Texting Mr. Right | About this edition: Since the appearance of the treatise on "Schedules of Reinforcement" by Ferster and Skinner over two decades ago, the literature in behavior analysis, both experimental and applied, has been dominated by a range of studies dedi­ cated to providing ever more systematic and refined accounts of these "mainsprings of behavior control.