Mccain, Garvin, et al. “Extended Training: Delay of Reward”. Bulletin of the Psychonomic Society, vol. 9, no. 2, 1977, pp. 111-2, https://doi.org/10.3758/bf03336945.
Mccain, G., BoodeÉ, A., & Lobb, M. (1977). Extended training: Delay of reward. Bulletin of the Psychonomic Society, 9(2), 111-112. https://doi.org/10.3758/bf03336945
Mccain G, BoodeÉ A, Lobb M. Extended training: Delay of reward. Bulletin of the Psychonomic Society. 1977;9(2):111-2.