Marine mammal survey and assessment methods : proceedings of the Symposium on Surveys, Status & Trends of Marine Mammal Populations, Seattle, Washington, USA, 25-27 February 1998 - Symposium on Surveys, Status & Trends of Marine Mammal Populations (1998 : Seattle); Garner, G. W. (Rotterdam : A. A. Balkema, 1999)
Keywords: Marine mammals -- Congresses