Berglund, B. (1988). Calving performance, production and reproduction in early lactation: Studies on variation and interrelationships in Swedish dairy breeds under experimental conditions. Sveriges lantbruksuniversitet.
Lua i Stíl Chicago (17ú heag.)Berglund, Britt. Calving Performance, Production and Reproduction in Early Lactation: Studies on Variation and Interrelationships in Swedish Dairy Breeds Under Experimental Conditions. Uppsala: Sveriges lantbruksuniversitet, 1988.
Lua MLA (8ú heag.)Berglund, Britt. Calving Performance, Production and Reproduction in Early Lactation: Studies on Variation and Interrelationships in Swedish Dairy Breeds Under Experimental Conditions. Sveriges lantbruksuniversitet, 1988.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.