(Agriculture Dept. Farmers' bulletin 447.) [Imprint date incorrectly given on title-page as 1921.]
Notes:
(Agriculture Dept. Farmers' bulletin 447.) [Imprint date incorrectly given on title-page as 1921.] * For Sale by Superintendent of Documents. Paper, 5c.
Availability:
* For Sale by Superintendent of Documents. Paper, 5c.