APA aipamena

Crabtree, J. E., Mahony, M. J., Taylor, J. D., Heatley, R. V., Littlewood, J. M., & Tompkins, D. S. (1991). Immune responses to Helicobacter pylori in children with recurrent abdominal pain.

Chicago Style aipamena

Crabtree, J E., M J. Mahony, J D. Taylor, R V. Heatley, J M. Littlewood, and D S. Tompkins. Immune Responses to Helicobacter Pylori in Children With Recurrent Abdominal Pain. 1991.

MLA aipamena

Crabtree, J E., et al. Immune Responses to Helicobacter Pylori in Children With Recurrent Abdominal Pain. 1991.