Markton and other varieties of oats / O.E. Barbee.

mengikut Barbee, O. E.
Diterbitkan 1935

Washington oats / [by E.G. Schafer, E.F. Gaines and O.E. Barbee].

mengikut Schafer, E. G. 1884-1976.
Diterbitkan 1923

Cultural experiments with wheat / by E.G. Schafer, E.F. Gaines and O.E. Barbee.

mengikut Schafer, E. G. 1884-1976.
Diterbitkan 1921

Wheat production as influenced by variety, time of seeding, and source of seed / by E.G. Schafer, E.F. Gaines and O.E. Barbee.

mengikut Schafer, E. G. 1884-1976.
Diterbitkan 1921

Washington barley / [by E.G. Schafer, E.F. Gaines and O.E. Barbee].

mengikut Schafer, E. G. 1884-1976.
Diterbitkan 1924

Wheat varieties in Washington / by E.G. Schafer, E.F. Gaines and O.E. Barbee.

mengikut Schafer, E. G. 1884-1976.
Diterbitkan 1926