共 9 条
[1]
ANDERSON IE, 1973, SCI TECHNOLOGY GUIDE, P4864
[2]
MCCARTY MK, 1969, 230 NEBR AGR EXP STA
[3]
MOORE R. J., 1956, CANADIAN JOUR BOT, V34, P71
[4]
FURTHER STUDIES ON NATURAL SELECTION AMONG HYBRIDS OF CARDUUS ACANTHOIDES AND CARDUUS NUTANS
[J].
CANADIAN JOURNAL OF BOTANY,
1964, 42 (12)
:1605-&
[5]
MULLIGAN G. A., 1954, CANADIAN FIELD NAT, V68, P31
[6]
MULLIGAN GERALD A., 1961, CANADIAN JOUR BOT, V39, P269
[7]
STUCKEY R L, 1971, Ohio Journal of Science, V71, P1
[8]
1971, 03011896 US DEP COMM
[9]
1973, RAND MCNALLY ROAD AT