Packer, A. H., & Haugh, R. R. (1922). Radio for the amateur: The underlying principles of receiving and the construction and operation of receiving sets. Goodheart-Willcox Co..
Chicago-referens (17:e uppl.)Packer, Alfred Herbert, och Raymond Reck Haugh. Radio for the Amateur: The Underlying Principles of Receiving and the Construction and Operation of Receiving Sets. Chicago: Goodheart-Willcox Co., 1922.
MLA-referens (8:e uppl.)Packer, Alfred Herbert, och Raymond Reck Haugh. Radio for the Amateur: The Underlying Principles of Receiving and the Construction and Operation of Receiving Sets. Goodheart-Willcox Co., 1922.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.