एपीए उद्धरण

Knudsen Vern O. (1968). Acoustical designing in architecture. J W.

शिकागो स्टाइल उद्धरण

Knudsen Vern O. Acoustical Designing in Architecture. N Y: J W, 1968.

एमएलए उद्धरण

Knudsen Vern O. Acoustical Designing in Architecture. J W, 1968.