APA (7th ed.) Citation

Shelley, S. (2015). Weighing. Chemical Engineering, 122(7), 24.

Chicago Style (17th ed.) Citation

Shelley, Suzanne. "Weighing." Chemical Engineering 122, no. 7 (2015): 24.

MLA (9th ed.) Citation

Shelley, Suzanne. "Weighing." Chemical Engineering, vol. 122, no. 7, 2015, p. 24.