APA (7th ed.) Citation

Warden, D. D., & Zimmer, D. R. (1991). DCS, PLC increase safety of chemical storage operation. Chilton's I&CS, 64, 47.

Chicago Style (17th ed.) Citation

Warden, D. D., and D. R. Zimmer. "DCS, PLC Increase Safety of Chemical Storage Operation." Chilton's I&CS 64 (1991): 47.

MLA (9th ed.) Citation

Warden, D. D., and D. R. Zimmer. "DCS, PLC Increase Safety of Chemical Storage Operation." Chilton's I&CS, vol. 64, 1991, p. 47.