Não informado. (1967). DB: The sound engineering magazine. Sagamore Publishing Company.
Chicago-viite (17. p.)Não informado. DB: The Sound Engineering Magazine. Plainview, N.Y: Sagamore Publishing Company, 1967.
MLA-viite (8. p.)Não informado. DB: The Sound Engineering Magazine. Sagamore Publishing Company, 1967.
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