Humpback whales and other marine mammals off Costa Rica, 1996-98

Citation:

Calambokidis, J., K. Rasmussen, and G.H. Steiger. 1998. Humpback whales and other marine mammals off Costa Rica, 1996-98. Report on research during Oceanic Society Expeditions in 1998 in cooperation with Elderhostel volunteers. Cascadia Research, 218½ W Fourth Ave., Olympia, WA 98501. 

Abstract: