Παραπομπή APA

Watts, O. M. (1971). Coastal and ocean seamanship. Thomas reed.

Παραπομπή Chicago Style

Watts, Oswald M. Coastal and Ocean Seamanship. London: Thomas reed, 1971.

Παραπομπή MLA

Watts, Oswald M. Coastal and Ocean Seamanship. Thomas reed, 1971.