APA citiranje

O'Halloran, S. M., & Heaf, D. P. (1989). Recurrent accident and emergency department attendance for acute asthma in children.

Citação norma Chicago

O'Halloran, S M., and D P. Heaf. Recurrent Accident and Emergency Department Attendance for Acute Asthma in Children. 1989.

MLA citiranje

O'Halloran, S M., and D P. Heaf. Recurrent Accident and Emergency Department Attendance for Acute Asthma in Children. 1989.