edited by A.L. Lloyd for the International Folk Music Council ; associate editor, Isabel Aretz de Ramón y Rivera ; prepared under the auspices of the International Music Council, with the assistance of the United Nations Educational, Scientific and Cultural Organisation (UNESCO)
edited by Maud Karpeles for the International Folk Music Council ; prepared under the auspices of the International Music Council ; with the assistance of the United Nations Educational, Scientific & Cultural Organisation (UNESCO)