APA (7th ed.) Citation

Poston, J. W. (1994). A revised dosimetric model of the gastrointestinal tract. [publisher not identified].

Chicago Style (17th ed.) Citation

Poston, John W. A Revised Dosimetric Model of the Gastrointestinal Tract. [Place of publication not identified]: [publisher not identified], 1994.

MLA (9th ed.) Citation

Poston, John W. A Revised Dosimetric Model of the Gastrointestinal Tract. [publisher not identified], 1994.