Cita APA

Sarna. (2010). Formers cruises and ports of call (7.). Wiley.

Chicago Edition Citation

Sarna. Formers Cruises and Ports of Call. 7. Wiley, 2010.

Cita MLA

Sarna. Formers Cruises and Ports of Call. 7. Wiley, 2010.

Atenció: Aquestes cites poden no estar 100% correctes.