APA Style
Passage Planning Guide : Straits of Malacca & Singapore(SOMS) (PPG - SOMS 2017 Edition). (2017).
London:
Witherby publisers.
MLA Style
Passage Planning Guide : Straits of Malacca & Singapore(SOMS) (PPG - SOMS 2017 Edition).
.
London:
Witherby publisers,
2017.
Text.