references
Dan Rather, Jerry Brown, "Environmentalist Take Aim at Noise in Our Waters," CBS, CBS Evening News with Dan Rather, 06-28-1999.
"Sounding the Depths," Natural Resource Defense Council, 1999.
Halliday, Resnick, Walker, Fundamentals of Physics, John Wiley & Sons Inc., New York, 1993.
"Sounding Out the Oceans Secrets," Beyond Discovery, National Academy of Sciences, 1999.
David Baron, Talk of the Nation Science Friday, NPR, New York, 06-26-1998.
Browne< Malcom, "Global Thermometer Imperriled by Dispute," New York Times, October 27, 1998.
Jim Hill, " Scientists and Environmentalists Clash over Whale Research," CNN, 1998.
Todd Preston, "The Unquiet Oceans," Vol. 8, E Magazine, 03-13-1997, pp21(4).
Stephanie Siegel, Low Frequency Active Sonar Raises Whale Advocates' Hackles, CNN, 1999.