APA (7th ed.) Citation

Wal, P. W. v. d. (1966). Loudspeakers and loudspeaker cabinets: 156 line drawings and 3 photographs. Philips' Gloeilampenfabrieken.

Chicago Style (17th ed.) Citation

Wal, Pieter W. van der. Loudspeakers and Loudspeaker Cabinets: 156 Line Drawings and 3 Photographs. Eindhoven: Philips' Gloeilampenfabrieken, 1966.

MLA (9th ed.) Citation

Wal, Pieter W. van der. Loudspeakers and Loudspeaker Cabinets: 156 Line Drawings and 3 Photographs. Philips' Gloeilampenfabrieken, 1966.