Não informado. (2004). International goat and sheep research. Dairy Goat Journal Publishers.
Chicago-viite (17. p.)Não informado. International Goat and Sheep Research. Scottsdale, Ariz: Dairy Goat Journal Publishers, 2004.
MLA-viite (8. p.)Não informado. International Goat and Sheep Research. Dairy Goat Journal Publishers, 2004.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.