ANCCE, administrator of the Spanish Stud Book:  www.lgancce.com/portal_publico

The United States P.R.E. Association: www.usprea.com

ANCCE’s Libro Genealogico del Caballo de Pura Raza Española:
www.lgancce.com/lgpreancce/asp-publico/arbolGenealogicoPRE/BuscarArbolPRE.aspx

The Foundation For The Pure Spanish Horse (USA) & PRE Mundial Registry:
www.yourandalusianfoundation.org

Melpi Show Results and genealogy information/ GEScab on line (Nuevo Libro Genealogico de PRE/pedigrees etc.): www.gescabonline.com/pre.aspx or www.certamenesecuestres.com

Information and photos of recent and historical P.R.E.s: www.grupopre.com

Range of information on the P.R.E. including conformation/morphology, genetics of coat color, show preparation, and history:  equiandalusian.com/idioma.cfm

P.R.E. Coat Color Genetics:
webcapas.lgancce.com/genetica-pre/Capas-Genes-Caballo.aspx

Horse Color/Genetic typing of P.R.E. horse colors:   
University of California at Davis Veterinary Genetics Laboratory - www.vgl.ucdavis.edu/services/coatcolorhorse.php
Animal Genetics, Inc., 1336 Timberlane Road, Tallahassee, Florida 32312   (866) 922-6436 - www.animalgenetics.us

The books written by Juan Carlos Altamirano on The Pure Spanish Horse are invaluable in understanding the P.R.E. and separating fact from myth. (Available through The Foundation For The Pure Spanish Horse or his web site: www.jcaltamirano.com. May also be available through your local bookseller or Amazon.com). His books include:

El Caballo Español: La Evolución de Su Morfologia / The Spanish Horse: The Evolution of Its Morphology, 2000

Las Caballerizas Reales De Cordoba / The Royal Stables of Cordoba, 2001

Historia Y Origen del Caballo Español / History and Origins of the Spanish Horse (1567-1800), 2002
which covers the origins of the selective development of the Pure Spanish Horse under King Philip II in the 1500s forward.

Historia De Los Caballos Cartujanos / The History of the Cartusian Horses

El Caballo Español Con Los Reyes Borbones /The Spanish Horse Under The Bourbon Kings, 2004

La Yeguada Militar / The Military Stud Farm, 2006

Several books featuring the spectacular photography of Robert Vavra are dedicated to the Pure Spanish Horse:

El Caballo Espanol by Robert Vavra, and James A. Michener - 1999

Cardenas Horses and Home by Robert Vavra - 2004
also available as Cardenas: Caballos Y Casa (Arquitectura Y Diseño) Spanish Edition by Robert Vavra  - 2005

Horses of the Sun: A Gallery of the World's Most Exquisite Equines by Robert Vavra - 1995 - P.R.E. and other breeds