MLA

Sircus, W. Peptic Ulceration and Its Management. Greenford, Middlesex: Glaxo, 1984.

APA

Sircus, W. (1984). Peptic ulceration and its management. Greenford, Middlesex: Glaxo.

Chicago

Sircus, W. Peptic Ulceration and Its Management. Greenford, Middlesex: Glaxo, 1984.