Gaya APA

Barass, C, B., Derrett, D. (2007). Ship Stability for Masters and Mates Sixth Edition (Ed. 6). United Kingdom: Penerbit Butterworth Heinemann.

Gaya MLA

Barass, C., B.., Derrett, D.R.. "Ship Stability for Masters and Mates Sixth Edition". Ed. 6 United Kingdom: Penerbit Butterworth Heinemann, 2007. Text.