Cita APA (7a ed.)
FRID, C., & ET AL. (1999). MORTALITY IN DOWN'S SYNDROME IN RELATION TO CONGENITAL MALFORMATIONS.
Cita Chicago Style (17a ed.)
FRID, C., y ET AL. MORTALITY IN DOWN'S SYNDROME IN RELATION TO CONGENITAL MALFORMATIONS. 1999.
Cita MLA (9a ed.)
FRID, C., y ET AL. MORTALITY IN DOWN'S SYNDROME IN RELATION TO CONGENITAL MALFORMATIONS. 1999.
Precaución: Estas citas no son 100% exactas.