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1968. Underwater sounds of migrating gray 

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1961. The story of the gray whale. Pioneer Print- 

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1965. Data on speed and underwater exhalation of 

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1968. A killer whale — gray whale encounter. J. 

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1969. The echolocation of marine mammals. In 

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POULTER, T. C. 



1968. Vocalization of the gray whales in Laguna 

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1966. Sound structure and directionality in Orcinus 

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NOTICE THIS MATERIAL MAY BE 

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