UNESCO, 1974
Buku Teks
Comite Maritime International, 1987
Buku Teks
Moskow, Michael H., author
Random House, 1970
Buku Teks
Chaison, Gary, author
[Springer Science, Springer Science], 2012
eBooks
Beal, Edwin F., author
Richard D. Irwin, 1972
Buku Teks