"This publication supersedes "Brucellosis eradication: uniform methods and rules, effective February 1, 1998", APHIS 91-45-011, which was published in March 1998"--P. [2] of cover.
Also available via Internet. Address as of 1/29/08: http://www.aphis.usda.gov/animal%5Fhealth/animal%5Fdiseases/brucellosis/downloads/umr%5Fbrucellosis.pdf ; current access available via PURL.