APA

King C. M., Hellums B. A. (. A., Pearson R. E. R. d. i. s. n. & Thudium V. F. R. d. i. s. n. (1972). Drug information services. Rockville, MD: Pharmacy-Related Programs Branch, National Center for Health Services Research and Development; for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Chicago

King Charles M, Hellums Betty A (Betty Ann), Pearson Robert E Regional drug information service network and Thudium Vern F Regional drug information service network. 1972. Drug information services. Rockville, MD: Pharmacy-Related Programs Branch, National Center for Health Services Research and Development; for sale by the Supt. of Docs., U.S. Govt. Print. Off.

Harvard

King C. M., Hellums B. A. (. A., Pearson R. E. R. d. i. s. n. and Thudium V. F. R. d. i. s. n. (1972). Drug information services. Rockville, MD: Pharmacy-Related Programs Branch, National Center for Health Services Research and Development; for sale by the Supt. of Docs., U.S. Govt. Print. Off.

MLA

King Charles M, Hellums Betty A (Betty Ann), Pearson Robert E Regional drug information service network and Thudium Vern F Regional drug information service network. Drug information services. Rockville, MD: Pharmacy-Related Programs Branch, National Center for Health Services Research and Development; for sale by the Supt. of Docs., U.S. Govt. Print. Off. 1972.