एपीए उद्धरण

Watson, J. A. (1984). Commercial roofing systems. Reston.

शिकागो स्टाइल उद्धरण

Watson, John A. Commercial Roofing Systems. Virginia: Reston, 1984.

एमएलए उद्धरण

Watson, John A. Commercial Roofing Systems. Reston, 1984.