Okum, Arthur M., and George L. Perry. “Editors’ Summary”. Brookings Papers on Economic Activity, vol. 1974, no. 2, 1974, p. 283, https://doi.org/10.2307/2534188.
Okum, A. M., & Perry, G. L. (1974). Editors’ Summary. Brookings Papers on Economic Activity, 1974(2), 283. https://doi.org/10.2307/2534188
Okum AM, Perry GL. Editors’ Summary. Brookings Papers on Economic Activity. 1974;1974(2):283.