University of Illinois Urbana-Champaign

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Showing 6451–6480 of 9,124 items
Thumbnail for Creel Survey Manual for the District Fisheries Analysis System (FAS): A Package for
            Fisheries Management and Research
Creel Survey Manual for the District Fisheries Analysis System (FAS): A Package for Fisheries Management and Research
Bayley, Peter B.; Sobaski, Stephen T.; Austen, Douglas J.; Thampson, Mark; Citterman, Alan; Illyes, Robert F.

Thumbnail for Sex Ratios and Age Ratios in North American Ducks
Sex Ratios and Age Ratios in North American Ducks
Bellrose, Frank Chapman; Scott, Thomas G.; Hawkins, Arthur Stuart; Low, Jessop B.