$6.41 profit per hen per year
Boyer, Michael K., 1858-1935 , ed.
Book
Published material
[Philadelphia], W. Atkinson co, 1910
[4th ed.]
Eggs , Production
SF487 .B822
English
DOI: https://doi.org/10.5962/bhl.title.35002 LCCN: https://lccn.loc.gov/10006715
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