APA (7th ed.) Citation

Hill, K., & Cichonski, T. J. (1991). Research centers directory (16th ed.). Gale Research.

Chicago Style (17th ed.) Citation

Hill, Karen, and Thomas J. Cichonski. Research Centers Directory. 16th ed. London: Gale Research, 1991.

MLA (9th ed.) Citation

Hill, Karen, and Thomas J. Cichonski. Research Centers Directory. 16th ed. Gale Research, 1991.

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