APA-Zitierstil (7. Ausg.)

Nørgård, P. (1975). Libra, Version chorale choir: Integral version : for tenor, guitar, 2 choirs, 2 vibraphones and auxiliary windinstruments ad lib (Version chorale choir.). Wilhelm Hansen.

Chicago-Zitierstil (17. Ausg.)

Nørgård, Per. Libra, Version Chorale Choir: Integral Version : For Tenor, Guitar, 2 Choirs, 2 Vibraphones and Auxiliary Windinstruments Ad Lib. Version chorale choir. Copenhagen: Wilhelm Hansen, 1975.

MLA-Zitierstil (9. Ausg.)

Nørgård, Per. Libra, Version Chorale Choir: Integral Version : For Tenor, Guitar, 2 Choirs, 2 Vibraphones and Auxiliary Windinstruments Ad Lib. Version chorale choir. Wilhelm Hansen, 1975.