@book{11481,
	author = {O'Neal, A. M. and Klingebiel, A. A.,},
	title = {Your soil, crumbly or cloddy?},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1952].},
	series = {(U.S. Dept. of Agriculture.  Leaflet no. 328.)},
	address = {Washington,}
}