Gaya APA

M.R.I.N., A, F, B, M, M. (1981). Practical navigation for second Mates (5). London: Glasgow.

Gaya MLA

M.R.I.N., A., Frost,, B.Sc.,, Master, Mariner,. "Practical navigation for second Mates". 5 London: Glasgow, 1981. Text.