By King Ralph T.   in Journal of Forestry

ISSN:0022-1201|46|4|282-289

Society of American Foresters‎(1948)‎

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By King Ralph T.   in Journal of Forestry

ISSN:0022-1201|35|6|523-532

Society of American Foresters‎(1937)‎

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By King Ralph T.   in Journal of Forestry

ISSN:0022-1201|36|5|457-464

Society of American Foresters‎(1938)‎

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By Muehleisen Ralph T.   in Noise Control Engineering Journal

ISSN:0736-2501|55|4|427-430

Institute of Noise Control Engineering‎(2007)‎

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By Tuck Ralph T.   in Journal of Vocational Education and Training

ISSN:1363-6820|35|90|3-9

Routledge Ltd‎(1983)‎

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By Muehleisen Ralph T.   in INTER-NOISE and NOISE-CON Congress and Conference Proceedings

ISSN:0736-2935|2007|1|195-204

Institute of Noise Control Engineering‎(2007)‎

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By Muehleisen Ralph T.   in INTER-NOISE and NOISE-CON Congress and Conference Proceedings

ISSN:0736-2935|2005|1|1295-1300

Institute of Noise Control Engineering‎(2005)‎

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By Muehleisen Ralph T.   in INTER-NOISE and NOISE-CON Congress and Conference Proceedings

ISSN:0736-2935|2008|1|973-981

Institute of Noise Control Engineering‎(2008)‎

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By Muehleisen Ralph T.   in Noise Control Engineering Journal

ISSN:0736-2501|56|5|365-373

Institute of Noise Control Engineering‎(2008)‎

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By WHITE RALPH T.   in Journal of Economic Entomology

ISSN:1938-291X|50|4|423-428

Entomological Society of America‎(1957)‎

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