एपीए उद्धरण

Padelford, N. J., & Gibbs, S. R. (1975). Maritime commerce and the future of the panama canal. Cornell maritime press.

शिकागो स्टाइल उद्धरण

Padelford, Norman J., और Stephen R. Gibbs. Maritime Commerce and the Future of the Panama Canal. Cambridge: Cornell maritime press, 1975.

एमएलए उद्धरण

Padelford, Norman J., और Stephen R. Gibbs. Maritime Commerce and the Future of the Panama Canal. Cornell maritime press, 1975.