Coastal navigation : a programmed learning course /
Smith, Gerry
Coastal navigation : a programmed learning course / Gerry Smith - London : Elek, 1977 - vii, 182 p. : ill., charts, facsims., maps ; 25cm
0236401122
Coastwise navigation--Programmed instruction
Coastal navigation : a programmed learning course / Gerry Smith - London : Elek, 1977 - vii, 182 p. : ill., charts, facsims., maps ; 25cm
0236401122
Coastwise navigation--Programmed instruction
