Cita APA (7th ed.)
BRU, E., & ET AL. (1999). PERCEIVED SOCIAL SUPPORT AT SCHOOL AND EMOTIONAL AND MUSCULOSKELETAL COMPLAINTS AMONG NORWEGIAN 8TH GRADE STUDENTS.
Cita Chicago (17th ed.)
BRU, E., i ET AL. PERCEIVED SOCIAL SUPPORT AT SCHOOL AND EMOTIONAL AND MUSCULOSKELETAL COMPLAINTS AMONG NORWEGIAN 8TH GRADE STUDENTS. 1999.
Cita MLA (9th ed.)
BRU, E., i ET AL. PERCEIVED SOCIAL SUPPORT AT SCHOOL AND EMOTIONAL AND MUSCULOSKELETAL COMPLAINTS AMONG NORWEGIAN 8TH GRADE STUDENTS. 1999.
Atenció: Aquestes cites poden no estar 100% correctes.