Оригинал: Belwin 21st Century Band Method, Level 1. Belwin 21st Century Band Method, Level 1. Jack Bullock. Bassoon Solo sheet music.
Превод: Belwin 21st Century Band Метод, Level 1. Belwin 21st Century Band Метод, Level 1. Концерт Band. Jack Бълок. Фагот. За фагот.