Oorspronklik: Alfred's MusicTech, Book 1. Composed by Tom Rudolph, Floyd Richmond, Stefani Langol, and Lee Whitmore. Alfred's MusicTech, Book 1.
Vertaling: Alfred se MusicTech, Book 1. Saamgestel deur Tom Rudolph, Floyd Richmond, Stefani Langol, en Lee Whitmore. Onderwysersgids. Book.