APA

Cyan E. D., Hessmann L., . (1972). Without prescription : a guide to the selection and use of medicine you can get over - the counter without prescription for safe self-medication. New York: Simon & Schuster.

Chicago

Cyan Erwin Di, Hessmann Lawrence, . 1972. Without prescription : a guide to the selection and use of medicine you can get over - the counter without prescription for safe self-medication. New York: Simon & Schuster.

Harvard

Cyan E. D., Hessmann L., . (1972). Without prescription : a guide to the selection and use of medicine you can get over - the counter without prescription for safe self-medication. New York: Simon & Schuster.

MLA

Cyan Erwin Di, Hessmann Lawrence, . Without prescription : a guide to the selection and use of medicine you can get over - the counter without prescription for safe self-medication. New York: Simon & Schuster. 1972.