Thực đơn
Sierra (lớp tàu ngầm)Thực đơn
Sierra (lớp tàu ngầm)Liên quan
Sierra Leone Sierra (lớp tàu ngầm) Sierra Gorda Sierra de Ajusco-Chichinauhtzin Sierra Nevada (Hoa Kỳ) Sierra de Yeguas Sierra de Luna Sierra Bullones, Bohol Sierra Leone tại Thế vận hội Sierra MaestraTài liệu tham khảo
WikiPedia: Sierra (lớp tàu ngầm) https://lynceans.org/wp-content/uploads/2018/10/Ma... https://books.google.com/books?id=U86giz-cluoC&q=s... https://web.archive.org/web/20160913182445/https:/... http://www.deepstorm.ru/DeepStorm.files/45-92/nts/... https://web.archive.org/web/20061002201930/http://... http://www.system-safety.org/~issc_2006/Shaw-award... http://www.eurasian-defence.ru/?q=node/22972 https://web.archive.org/web/20160805133321/http://... https://archive.today/20130219180145/http://warfar... http://warfare.be/db/linkid/1760/catid/306/