1-21 of 21 Books

DHIA proved sire list, 1960
By United States. Agricultural Research Service

DHIA proved sire list, 1961
By United States. Agricultural Research Service
A history of Ayrshire cattle in the United States
A history of Ayrshire cattle in the United States
By George Augustus Bowling

DHIA sire summary list, May 1967
By United States. Agricultural Research Service

DHIA sire summary list, September 1967
By United States. Agricultural Research Service

DHIA sire summary list, May 1968
By United States. Agricultural Research Service

DHIA sire summary list, May 1969
By United States. Agricultural Research Service

USDA-DHIA sire summary list, May 1970
By United States. Agricultural Research Service

USDA-DHIA sire summary list, May 1971
By United States. Agricultural Research Service
O. A. C. Review Volume 31 Issue 11, July 1919
O. A. C. Review Volume 31 Issue 11, July 1919
By Ontario Agricultural College
O. A. C. Review Volume 39 Issue 4, December 1926
O. A. C. Review Volume 39 Issue 4, December 1926
By Ontario Agricultural College
La producción de la raza "Ayrshire" de pedigree al Perú con fines de mejoramiento de la raza nacional
La producción de la raza "Ayrshire" de pedigree al Perú con fines de mejoramiento de la raza nacional
By Ganadería y Colonización Peru. Dirección de Agricultura

The variation of the milk of Ayrshire cows in quantity and fat content of their milk
By Pearl, Raymond

Ayrshire breeders' year book
By Ayrshire Breeders' Association. Meeting

Ayrshire year book
By Ayrshire Breeders' Association

Year book of the Ayrshire Breeders
By Ayrshire Breeders' Association

DHIA sire summary list, April 1967
By United States. Agricultural Research Service

The origin and early history of the Ayshire breed of cattle
By John Speir
Analysis of the advanced registry records of 611 daughters of 51 Ayrshire sires
Analysis of the advanced registry records of 611 daughters of 51 Ayrshire sires
By M. H. Fohrman