Observations on Pacific cetaceans of Californian and Mexican waters

Norris, K. S.; Prescott, J. H.
University of California Publications in Zoology (1961)

(...) For five years we have systematically gathered information of every available kind related to these animals. Fifteen species have been observed in sufficient detail to be considered here. These…

A review of human impact on small cetaceans

Northridge, S.; Pilleri, G.
Investigations on Cetacea (1986)

(...) This document attempts to gather together as much information as is available on the extent of current killings of small cetaceans throughout the world, and also to highlight some…