?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=A+N&rft.au=Rao%2C+A+N&rft.aulast=Rao&rft.date=September+2019&rft.title=The+progress+and+future+of+Weed+Science+research+in+the+Asian-Pacific+region&rft.genre=proceeding