Gaya APA

Kyokai, N, K. (2011). Guidance for Undergoing Class Maintenance Surveys . Japan: Nipopon Kaiji Kyokai.

Gaya MLA

Kyokai, Nipopon, Kaiji. "Guidance for Undergoing Class Maintenance Surveys". Japan: Nipopon Kaiji Kyokai, 2011. Text.