APA (7th ed.) Citation

PS, D., & C, H. (1986). Drug-food interaction information: A file card for patient education. Hospital pharmacy, 21(9), 876.

Chicago Style (17th ed.) Citation

PS, Driver, and Helton C. "Drug-food Interaction Information: A File Card for Patient Education." Hospital Pharmacy 21, no. 9 (1986): 876.

MLA (9th ed.) Citation

PS, Driver, and Helton C. "Drug-food Interaction Information: A File Card for Patient Education." Hospital Pharmacy, vol. 21, no. 9, 1986, p. 876.