Liên kết ngoài Cừu Heidschnucke

Lüneburg Moorland Sheep Breeders Association including description of the German Grey Heath breed Lưu trữ 2009-05-13 tại Wayback Machine
Photos and breed markings of the German Grey Heath
Vieh EV.de
Website of the Association for the Preservation of Old and Endangered Domestic Animal Breeds (GEH)
Budiansky, Stephen (1999). The Covenant of the Wild: Why animals chose domestication. Yale University Press. ISBN 0-300-07993-1.
Ensminger, Dr. M.E.; Dr. R.O. Parker (1986). Sheep and Goat Science, Fifth Edition. Danville, Illinois: The Interstate Printers and Publishers Inc. ISBN 0-8134-2464-X.
Pugh, David G. (2001). Sheep & Goat Medicine. Elsevier Health Sciences. ISBN 0-7216-9052-1.
Simmons, Paula; Carol Ekarius (2001). Storey's Guide to Raising Sheep. North Adams, MA: Storey Publishing LLC. ISBN 978-1-58017-262-2.
Smith M.S., Barbara; Mark Aseltine PhD; Gerald Kennedy DVM (1997). Beginning Shepherd's Manual, Second Edition. Ames, Iowa: Iowa State University Press. ISBN 0-8138-2799-X.
Weaver, Sue (2005). Sheep: small-scale sheep keeping for pleasure and profit. 3 Burroughs Irvine, CA 92618: Hobby Farm Press, an imprint of BowTie Press, a division of BowTie Inc. ISBN 1-931993-49-1.Quản lý CS1: địa điểm (liên kết)
Wooster, Chuck (2005). Living with Sheep: Everything You Need to Know to Raise Your Own Flock. Geoff Hansen (Photography). Guilford, Connecticut: The Lyons Press. ISBN 1-59228-531-7.

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