Authors:
CLAY DE
CHANG J
CLAY SA
ELLSBURY M
CARLSON CG
MALO DD
WOODSON D
DESUTTER T
Citation: De. Clay et al., FIELD-SCALE VARIABILITY OF NITROGEN AND DELTA-N-15 IN SOIL AND PLANTS, Communications in soil science and plant analysis, 28(17-18), 1997, pp. 1513-1527
Citation: F. Zeng et al., DEMOGRAPHIC-STATISTICS FOR THE PEA APHID (HOMOPTERA, APHIDIDAE) ON RESISTANT AND SUSCEPTIBLE RED CLOVERS, Journal of economic entomology, 86(6), 1993, pp. 1852-1856