Cita APA (7th ed.)
PORTNOY, S., & ET AL. FIVE-YEAR FOLLOW-UP STUDY OF EXTREMELY LOW-BIRTHWEIGHT INFANTS.
Cita Chicago (17th ed.)
PORTNOY, S., i ET AL. FIVE-YEAR FOLLOW-UP STUDY OF EXTREMELY LOW-BIRTHWEIGHT INFANTS.
Cita MLA (9th ed.)
PORTNOY, S., i ET AL. FIVE-YEAR FOLLOW-UP STUDY OF EXTREMELY LOW-BIRTHWEIGHT INFANTS.
Atenció: Aquestes cites poden no estar 100% correctes.