Composed by Erzsebet Szonyi. Theory. Book Only. Composed 1978. 36 pages. Editio Musica Budapest #EMBZ8013. Published by Editio Musica Budapest (BT.EMBZ8013).
American, Australian, Japanese and French Folks. Composed by Erzsebet Szonyi. EMB. Volume 3. Theory. Book [Softcover]. Editio Musica Budapest #Z8013. Published by Editio Musica Budapest (HL.50489389).