American Shropshire Registry Assn, Levering, M., & Wad, J. M. (1889). The American Shropshire sheep record. American Shropshire Registry Association.
Chicago Style (17th ed.) CitationAmerican Shropshire Registry Assn, Mortimer Levering, and Julia M. Wad. The American Shropshire Sheep Record. [S.l.]: American Shropshire Registry Association, 1889.
MLA (8th ed.) CitationAmerican Shropshire Registry Assn, et al. The American Shropshire Sheep Record. American Shropshire Registry Association, 1889.
Warning: These citations may not always be 100% accurate.