By Merriam L. C.   Ammons R. B.   in Journal of Forestry

ISSN:0022-1201|66|5|390-395

Society of American Foresters‎(1968)‎

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By Ammons R.   Thistle H.   Barry J.   in Journal of Agricultural Engineering Research

ISSN:0021-8634|75|2|155-166

Academic Press‎(2000)‎

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By Isbell S.A.   Fyfe C.A.   Ammons R.L.M.   Pearson B.   in Cryobiology

ISSN:0011-2240|35|2|165-172

Academic Press‎(1997)‎

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