PT - JOURNAL ARTICLE AU - James R Vertin TI - The state of the art in our profession AID - 10.3905/jpm.1974.408489 DP - 1974 Oct 31 TA - The Journal of Portfolio Management PG - 10--12 VI - 1 IP - 1 4099 - https://pm-research.com/content/1/1/10.short 4100 - https://pm-research.com/content/1/1/10.full