Beekman, John A. “‘Social Security: Regressive or Progressive?’, Robert L. Brown, April 1998”. North American Actuarial Journal, vol. 2, no. 2, 1998, pp. 23-23, https://doi.org/10.1080/10920277.1998.10595688.
Beekman, J. A. (1998). “Social Security: Regressive or Progressive?”, Robert L. Brown, April 1998. North American Actuarial Journal, 2(2), 23-23. https://doi.org/10.1080/10920277.1998.10595688
Beekman JA. “Social Security: Regressive or Progressive?”, Robert L. Brown, April 1998. North American Actuarial Journal. 1998;2(2):23-.