8 unnumbered pages : color illustrations ; 23 x 10 cm
OCLC
ocm42942911
"Issued September 1999."
Shipping list no.: 2000-0051-P.
"This publication supersedes "Hog cholera: although eradicated, still a threat," Program Aid No. 1220, issued in 1978."
Also available via the Internet from the APHIS web site. Address as of 06/12/08: http://www.aphis.usda.gov/lpa/pubs/csfleaf.pdf; current access available via PURL.