Allonby, J. I. H., & Wilson, P. B. (2018). British poultry standards: Complete specifications and judging points of all standardized breeds and varieties of poultry as compiled by the specialist affiliated breed clubs and recognized by the Poultry Club of Great Britain (Seventh edition.). John Wiley & Sons.
Chicago Style (17th ed.) CitationAllonby, J. Ian H., and Philippe B. Wilson. British Poultry Standards: Complete Specifications and Judging Points of All Standardized Breeds and Varieties of Poultry as Compiled by the Specialist Affiliated Breed Clubs and Recognized by the Poultry Club of Great Britain. Seventh edition. Chichester, UK: John Wiley & Sons, 2018.
MLA (9th ed.) CitationAllonby, J. Ian H., and Philippe B. Wilson. British Poultry Standards: Complete Specifications and Judging Points of All Standardized Breeds and Varieties of Poultry as Compiled by the Specialist Affiliated Breed Clubs and Recognized by the Poultry Club of Great Britain. Seventh edition. John Wiley & Sons, 2018.