2012 IX International Livestock Environment Symposium (ILES IX) Conference proceedings, 8-12 July 2012 Valencia Spain (121 papers). ASABE.
Chicago-referens (17:e uppl.)2012 IX International Livestock Environment Symposium (ILES IX) Conference Proceedings, 8-12 July 2012 Valencia Spain (121 Papers). ASABE.
MLA-referens (9:e uppl.)2012 IX International Livestock Environment Symposium (ILES IX) Conference Proceedings, 8-12 July 2012 Valencia Spain (121 Papers). ASABE.
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