एपीए उद्धरण

Herrera León, L., & Martínez Barreiro, L. A. (2009). The multiple pregnancy: Is it really a factor of high obstetric risk?

शिकागो स्टाइल उद्धरण

Herrera León, Lorenzo, और Luis Armando Martínez Barreiro. The Multiple Pregnancy: Is It Really a Factor of High Obstetric Risk? 2009.

एमएलए उद्धरण

Herrera León, Lorenzo, और Luis Armando Martínez Barreiro. The Multiple Pregnancy: Is It Really a Factor of High Obstetric Risk? 2009.