Citação norma APA

Howard, P. J., Murphy, G. M., & Dowling, R. H. (1991). Gall bladder emptying patterns in response to a normal meal in healthy subjects and patients with gall stones: Ultrasound study.

Citação norma Chicago

Howard, P J., G M. Murphy, and R H. Dowling. Gall Bladder Emptying Patterns in Response to a Normal Meal in Healthy Subjects and Patients With Gall Stones: Ultrasound Study. 1991.

Citação norma MLA

Howard, P J., G M. Murphy, and R H. Dowling. Gall Bladder Emptying Patterns in Response to a Normal Meal in Healthy Subjects and Patients With Gall Stones: Ultrasound Study. 1991.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.