TY - BOOK ID - 133355041 TI - Chemical control of submersed waterweeds in Western irrigation and drainage canals : joint report PY - 1964 PB - [Beltsville, Md.] U.S. Dept. of Agriculture, Agricultural Research Service DB - UniCat KW - Control KW - Irrigation canals and flumes KW - Weed control KW - Weeds UR - https://www.unicat.be/uniCat?func=search&query=sysid:133355041 AB - ER -