Citazione APA

Macdowell, C. E., & Gibbs, H. M. (1959). Ocean Transprortation. McGraw Hill.

Stile di citazione Chicago

Macdowell, Cart E., e Helen M. Gibbs. Ocean Transprortation. New York: McGraw Hill, 1959.

Citazione MLA

Macdowell, Cart E., e Helen M. Gibbs. Ocean Transprortation. McGraw Hill, 1959.