APA (7th ed.) Citation

Howard W. Sams & Co. (1948). Post war audio amplifiers and associated equipment: A specialized volume of Photofact folders (2d ed.). [publisher not identified].

Chicago Style (17th ed.) Citation

Howard W. Sams & Co. Post War Audio Amplifiers and Associated Equipment: A Specialized Volume of Photofact Folders. 2d ed. Indianapolis: [publisher not identified], 1948.

MLA (9th ed.) Citation

Howard W. Sams & Co. Post War Audio Amplifiers and Associated Equipment: A Specialized Volume of Photofact Folders. 2d ed. [publisher not identified], 1948.