एपीए उद्धरण

Berghella, V., & Saccone, G. (2019). Fetal fibronectin testing for reducing the risk of preterm birth. Cochrane Database Syst Rev.

शिकागो स्टाइल उद्धरण

Berghella, Vincenzo, और Gabriele Saccone. "Fetal Fibronectin Testing for Reducing the Risk of Preterm Birth." Cochrane Database Syst Rev 2019.

एमएलए उद्धरण

Berghella, Vincenzo, और Gabriele Saccone. "Fetal Fibronectin Testing for Reducing the Risk of Preterm Birth." Cochrane Database Syst Rev 2019.