Oregon Sea Grant - Accessibility: ...- [ Translate this page ]
http://seagrant.oregonstate.edu/sgpubs/onlinepubs/g96008.html

Reserva de la Biosfera El Vizcaíno: ...- [ Translate this page ]
http://maya.ucr.edu/pril/reservas/elvizcaino/elvizcaino6.html

Reserva de la Biósfera Alto Golfo de California y Delta del Río ...: ...- [ Translate this page ]
http://maya.ucr.edu/pril/reservas/altogolfo/altogolfo6.html

Publications on Marine Mammals by Aldemaro Romero: ...- [ Translate this page ]
http://www.clt.astate.edu/aromero/new_page_162.htm

Publications: ...- [ Translate this page ]
http://www.clt.astate.edu/aromero/aldemaro_romero.htm

WhaleNet/Scientific American: Ask the Experts: Biology: ...- [ Translate this page ]
http://whale.wheelock.edu/whalenet-stuff/sleeppage/index_esp.html