Apple, pear, and related trees disorder: fire blight /
P.S. McManus and M.F. Heimann.
APA Citation
McManus, P. S., Heimann, M. Francis. (1997). Apple, pear, and related trees disorder: fire blight. Madison, Wis.: University of Wisconsin--Extension, Cooperative Extension.
MLA Citation
McManus, Patricia S, and Mary Francis Heimann. Apple, Pear, And Related Trees Disorder: Fire Blight. Madison, Wis.: University of Wisconsin--Extension, Cooperative Extension, 1997.
Warning: These citations may not always be complete (especially for serials).