An Environmental History of Walvis Bay", NWG, Windhoek 2004 – Namibiana Buchdepot* de Beer, Charles: Marine Life", @tidude Graphix, Swakopmund o.J.
An Environmental History of Walvis Bay", NWG, Windhoek 2004 — Namibiana Buchdepot* de Beer, Charles: Marine Life", @tidude Graphix, Swakopmund o.J.