Wallis, R. L. (1944). Control of the mexican bean beetle in irrigated districts in the West: By R. L. Wallis. U.S. Dept. of Agriculture.
Chicago-Zitierstil (17. Ausg.)Wallis, R. L. Control of the Mexican Bean Beetle in Irrigated Districts in the West: By R. L. Wallis. Washington: U.S. Dept. of Agriculture, 1944.
MLA-Zitierstil (9. Ausg.)Wallis, R. L. Control of the Mexican Bean Beetle in Irrigated Districts in the West: By R. L. Wallis. U.S. Dept. of Agriculture, 1944.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.