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A Comparison of Gastrointestinal Nematode Egg Counts, Larval Cultures, Larval Identifications and Their Correlation with Adult Worms Found in Calves

Luis Villasenor Michel

出版	Texas A & M University, 1968
URL	http://books.google.com.hk/books?id=fSd4HAAACAAJ&hl=&source=gbs_api