APA (7th ed.) Citation

Knapp, L. C., & Lenzini, R. T. (1987). Price Index for 1987: U.S. Periodicals.

Chicago Style (17th ed.) Citation

Knapp, Leslie C., and Rebecca T. Lenzini. Price Index for 1987: U.S. Periodicals. 1987.

MLA (9th ed.) Citation

Knapp, Leslie C., and Rebecca T. Lenzini. Price Index for 1987: U.S. Periodicals. 1987.

Warning: These citations may not always be 100% accurate.