The airplane in Catalpa sphinx control /
Houser, J. S
The airplane in Catalpa sphinx control / J. S. Houser - Wooster, Ohio : Ohio Agr. Exp. Sta. - p. 126-36 - Ohio Agr. Exp. Sta. The monthly bull.; 7 (7-8) .
Encuadernado con: Liming the land in Western Ohio/Thorne, C. E.
203579
Aviación en agricultura Ceratomia catalpae
The airplane in Catalpa sphinx control / J. S. Houser - Wooster, Ohio : Ohio Agr. Exp. Sta. - p. 126-36 - Ohio Agr. Exp. Sta. The monthly bull.; 7 (7-8) .
Encuadernado con: Liming the land in Western Ohio/Thorne, C. E.
203579
Aviación en agricultura Ceratomia catalpae