Cita APA

(2015). 21st century seamanship (1. edition.). Scotland, UK: Witherby Seamanship International.

Citación estilo Chicago

21st Century Seamanship. 1. edition. Scotland, UK: Witherby Seamanship International, 2015.

Cita MLA

21st Century Seamanship. 1. edition. Scotland, UK: Witherby Seamanship International, 2015.

Precaución: Estas citas no son 100% exactas.