Παραπομπή APA

Blewitt, M. (1973). Navigation for yachtsmen (Ed.3.). Edward Stanford.

Παραπομπή Chicago Style

Blewitt, Mary. Navigation for Yachtsmen. Ed.3. London: Edward Stanford, 1973.

Παραπομπή MLA

Blewitt, Mary. Navigation for Yachtsmen. Ed.3. Edward Stanford, 1973.