Bonwick, G. J., Bowman, J. P., & Campbell, F. S. (1968). Seamanship handbook for basic studies (4th rev. and enl. ed.). Maritime Press.
Lua i Stíl Chicago (17ú heag.)Bonwick, George James, J. P. Bowman, agus F. S. Campbell. Seamanship Handbook for Basic Studies. 4th rev. and enl. ed. London: Maritime Press, 1968.
Lua MLA (9ú heag.)Bonwick, George James, et al. Seamanship Handbook for Basic Studies. 4th rev. and enl. ed. Maritime Press, 1968.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.