Specimen examination questions for licenses as master, mate, and pilot of central western rivers vessels.
Subtitle: June 1950.
Publisher: U.S. Govt. Print. Off.
Published: 1950
Place of publication: Washington
Language: eng
Number of pages: 58
Subjects: Navigation -- Examinations, questions, etc.
Notes: "Suggested sources of material": p. vii-viii.
"CG-220."