एपीए उद्धरण

Zach, M. S., & Oberwaldner, B. (1992). Effect of positive expiratory pressure breathing in patients with cystic fibrosis.

शिकागो स्टाइल उद्धरण

Zach, M S., और B. Oberwaldner. Effect of Positive Expiratory Pressure Breathing in Patients With Cystic Fibrosis. 1992.

एमएलए उद्धरण

Zach, M S., और B. Oberwaldner. Effect of Positive Expiratory Pressure Breathing in Patients With Cystic Fibrosis. 1992.