共 18 条
[11]
MOORE R J, 1969, Canadian Field-Naturalist, V83, P243
[12]
MUENSCHER W. C., 1948, Proceedings of the Northeastern Weed Control Conference, P155
[13]
REED CF, 1970, 366 US DEP AGR HDB
[14]
RICHARDSON J W, 1968, University of Kansas Science Bulletin, V48, P45
[15]
Smith A. R., 1968, FLORA EUROPAEA, V2, P213
[16]
STUCKEY IH, 1973, 165 U RHOD ISL COOP
[17]
WARHOLIC DT, 1975, 712 CORN U DEP VEG C, P190
[18]
1962, WEEDS, V10, P225