Parsons, W. J., & Hornick, R. B. (1985). Typhoid Fever. In J. A. Spittel (Ed.), Clinical Medicine (Vol. 2 (42), pp. 1–11). Philadelphia: JB Lippincott Company.

Parsons, W. J., and R. B. Hornick. “Typhoid Fever.” In Clinical Medicine, edited by J. A. Spittel, 2 (42):1–11. Philadelphia: JB Lippincott Company, 1985.

Parsons WJ, Hornick RB. Typhoid Fever. In: Spittel JA, editor. Clinical Medicine. Philadelphia: JB Lippincott Company; 1985. p. 1–11.

Parsons, W. J., and R. B. Hornick. “Typhoid Fever.” Clinical Medicine, edited by J. A. Spittel, vol. 2 (42), JB Lippincott Company, 1985, pp. 1–11.

Parsons WJ, Hornick RB. Typhoid Fever. In: Spittel JA, editor. Clinical Medicine. Philadelphia: JB Lippincott Company; 1985. p. 1–11.