R. Watson, P. Tyedmers, D. Pauly, (2003). Conservation in Practice 4, 20-21. http://www.ecomarres.com/downloads/whatsleft.pdf
R. Watson, P. Tyedmers, D. Pauly, (2003). Conservation in Practice 4, 20-21. http://www.ecomarres.com/downloads/whatsleft.pdf