TY - BOOK AU - Lauritzen,C.W. AU - Thayer,Arnold A. TI - Rain traps for intercepting and storing water for livestock T2 - [United States. Dept. of Agriculture] Agriculture information bulletin AV - S21 .A74 no. 307 PY - 1966///] CY - Washington] PB - Agricultural Research Service, U.S. Dept. of Agriculture KW - Water harvesting KW - Rainwater KW - Storage KW - Water-supply for stock ER -