Nicholls's seamanship and nautical knowledge for second mates', amtes' and masters' examinations - Brown, Charles H.; Nicholls, Alfred Edward; Brown, H. H. (Manila National Book Store, 1971)
Addendum : The international code of signals, 1969.
Reprint of the same ed. published by Brown and Ferguson, Glasgow.
Reprinted under authority of Presidential Decree NO. 285, as amended by P. D. No. 400.
Keywords: Navigation; Navigation -- Examinations, questions, etc