Cita APA (7th ed.)

Strange, J. M., & Ccrn, R. (1985). Gastrointestinal Problems (1st.). Medical Economics Books.

Cita Chicago (17th ed.)

Strange, Julie Mull, i R.N Ccrn. Gastrointestinal Problems. 1st. New Jersey: Medical Economics Books, 1985.

Cita MLA (9th ed.)

Strange, Julie Mull, i R.N Ccrn. Gastrointestinal Problems. 1st. Medical Economics Books, 1985.