Castrén, H. (1993). Suckling behaviour, milk consumption and hormone release in the sow relative to nest building and early milk ejections.
Lua i Stíl Chicago (17ú heag.)Castrén, Heli. Suckling Behaviour, Milk Consumption and Hormone Release in the Sow Relative to Nest Building and Early Milk Ejections. 1993.
Lua MLA (8ú heag.)Castrén, Heli. Suckling Behaviour, Milk Consumption and Hormone Release in the Sow Relative to Nest Building and Early Milk Ejections. 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.