A laboratory manual in systematic pomology : an effort to place before the students of pomology in the Michigan agricultural college a means by which an intimate and accurate knowledge of polomogy may be acquired Hedrick, U. P. creator text book S.l s.n 1903? 1903
print
ENG Fruit-culture https://www.biodiversitylibrary.org/bibliography/57591 63349583 agr03001161 10.5962/bhl.title.57591 Lib. U.S. Dept. of Agr.