Cita APA (7th ed.)

Levy, J. (1989). A practical approach to pediatric gastroenterology. Jaypee.

Cita Chicago (17th ed.)

Levy, Joseph. A Practical Approach to Pediatric Gastroenterology. New Delhi: Jaypee, 1989.

Cita MLA (9th ed.)

Levy, Joseph. A Practical Approach to Pediatric Gastroenterology. Jaypee, 1989.