APA ציטוט

Sears, M. R. (1991). Beta 2 agonists and asthma.

Citação norma Chicago

Sears, M R. Beta 2 Agonists and Asthma. 1991.

ציטוט MLA

Sears, M R. Beta 2 Agonists and Asthma. 1991.