Parrott, Daniel S. (Daniel Sargent) Bridge resource management for small ships the watchkeeper's manual for limited-tonnage vessels Daniel S. Parrott. - Camden, Me. : International Marine ; London : McGraw-Hill [distributor], c2011. - xi, 177 p. : ill., maps ; 29 cm. ISBN: 9780071550079 Subjects--Topical Terms: Merchant marine -- Safety measuresMerchant marine -- Watch duty