Cita APA (7th ed.)
AKEFELDT, A., & ET AL. (1997). VOICE, SPEECH AND LANGUAGE CHARACTERISTICS OF CHILDREN WITH PRADER-WILLI SYNDROME.
Cita Chicago (17th ed.)
AKEFELDT, A., i ET AL. VOICE, SPEECH AND LANGUAGE CHARACTERISTICS OF CHILDREN WITH PRADER-WILLI SYNDROME. 1997.
Cita MLA (9th ed.)
AKEFELDT, A., i ET AL. VOICE, SPEECH AND LANGUAGE CHARACTERISTICS OF CHILDREN WITH PRADER-WILLI SYNDROME. 1997.
Atenció: Aquestes cites poden no estar 100% correctes.