Armitage, P. L., & Goodall, J. A. (1977). Medieval horned and polled sheep: The archaeological and iconographic evidence.
Chicago Style (17th ed.) CitationArmitage, Philip L., and John A. Goodall. Medieval Horned and Polled Sheep: The Archaeological and Iconographic Evidence. 1977.
MLA (9th ed.) CitationArmitage, Philip L., and John A. Goodall. Medieval Horned and Polled Sheep: The Archaeological and Iconographic Evidence. 1977.
Warning: These citations may not always be 100% accurate.