By Steven D. Levitt, Stephen J. Dubner
By Levitt, Steven D., Dubner, Stephen J., Stephen J. Dubner, Steven D. Levitt
By Dubner, Stephen J., Levitt, Steven D., Stephen J. Dubner, Steven D. Levitt
By Steven D. Levitt and Stephen J. Dubner, Stephen J. Dubner, Steven D. Levitt