Tsuma, V. T. (1995). Clinical and endocrine studies in primiparous sows: Effects of weaning during lactation and of group housing and fasting during early pregnancy. Dept. of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences.
Lua i Stíl Chicago (17ú heag.)Tsuma, Victor T. Clinical and Endocrine Studies in Primiparous Sows: Effects of Weaning During Lactation and of Group Housing and Fasting During Early Pregnancy. Uppsala, Sweden: Dept. of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, 1995.
Lua MLA (8ú heag.)Tsuma, Victor T. Clinical and Endocrine Studies in Primiparous Sows: Effects of Weaning During Lactation and of Group Housing and Fasting During Early Pregnancy. Dept. of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, Swedish University of Agricultural Sciences, 1995.