[PROF. R. WETZEL, VET. M.D., ON HIS 70TH BIRTHDAY].
D000818:Animals; D049672:History, 19th Century; D049673:History, 20th Century; D014730:Veterinary Medicine
BIOGRAPHIES; HISTORY; VETERINARY MEDICINE
PROF. DR. DR. H. C.R.WETZEL ZUM 70.GEBURTSTAG.