Rockville, MD : U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Institute on Drug Abuse, 1993.

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Callahan, Sean M. (Sean Michael), 1966-

Cambridge, Mass. : Massachusetts Institute of Technology ; Woods Hole, Mass. : Woods Hole Oceanographic Institution, [1999]

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Upton, N.Y. : Biology Dept., Brookhaven National Laboratory ; Springfield, Va. : available from National Technical Information Service, U.S. Dept. of Commerce, 1975.

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