EAST, L. Tippett and "The Knot Garden". Contact: A Journal for Contemporary Music (1971-1990), [S. l.], n. 6, 1973. DOI: 10.25602/GOLD.cj.v0i6.913. Disponível em: https://goldojs-prod.leaf.cosector.com/index.php/contactjournal/article/view/contactjournal06_p31-34. Acesso em: 19 sep. 2024.