Rottweiler
Schanzle, Manfred, Studies In The Breed History Of The Rottweiler. German edition Published by Allgemeiner Deutscher Rottweiller – Klub (ADRK) E.V. 1967 English edition published jointly by Colonial Rottweiler Club & Medallion Rottweiler Club – Sept 1969. 1981 Printing (updated) – Published by Powderhorn Press 3320 Wonderview Plaza, Hollywood, CA90068.