共 19 条
[1]
ANDRIOT JL, 1983, POP ABSTR US
[2]
[Anonymous], IRON AGE
[3]
[Anonymous], STAT ABSTR US
[5]
CURLEE T, 1984, MATERIALS SOC, V8
[6]
CURLEE TR, 1984, ORNLTM9098
[7]
EWERT NJ, 1976, THESIS SO ILLINOIS U
[8]
HARWOOD JJ, 1977, MATERIALS SOC, V1, P177
[9]
*I SCRAP IR STEEL, MET SCRAP MAN RES
[10]
Johnston J., 1972, ECONOMETRIC METHODS, V2nd edn