Grey, M. (1980). Changing course: A second career for seafarers ashore in the marine industry. Fairplay.
Cita Chicago (17th ed.)Grey, Michael. Changing Course: A Second Career for Seafarers Ashore in the Marine Industry. Londres: Fairplay, 1980.
Cita MLA (9th ed.)Grey, Michael. Changing Course: A Second Career for Seafarers Ashore in the Marine Industry. Fairplay, 1980.
Atenció: Aquestes cites poden no estar 100% correctes.