Dyfyniad APA

Hewson, J. B. (1963). history of the practice of navigation (rev.ed.). Son.

Dyfyniad Arddull Chicago

Hewson, J B. History of the Practice of Navigation. rev.ed. London: Son, 1963.

Dyfyniad MLA

Hewson, J B. History of the Practice of Navigation. rev.ed. Son, 1963.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.