एपीए उद्धरण

Permanent Internatinol Assioction of Navigation Congresses. (1981). Inland & Maritime Water & Ports; Design- Construction- Operation. Pergamon Press.

शिकागो स्टाइल उद्धरण

Permanent Internatinol Assioction of Navigation Congresses. Inland & Maritime Water & Ports; Design- Construction- Operation. Oxford: Pergamon Press, 1981.

एमएलए उद्धरण

Permanent Internatinol Assioction of Navigation Congresses. Inland & Maritime Water & Ports; Design- Construction- Operation. Pergamon Press, 1981.