共 94 条
[71]
LAND DEGRADATION - EFFECTS ON FOOD AND ENERGY-RESOURCES
[J].
SCIENCE,
1976, 194 (4261)
:149-155
[72]
*POL EC PLANN, 1955, WORLD POP RES REP
[73]
POLEMAN TT, 1978, WORLD FOOD PROBLEM C, P383
[74]
*PRES SCI ADV COMM, 1967, WORLD FOOD PROBL, V2
[75]
ROBERTS M, 1951, ESTATE MAN
[80]
RESOURCES, POPULATION, ENVIRONMENT - AN OVERSUPPLY OF FALSE BAD NEWS
[J].
SCIENCE,
1980, 208 (4451)
:1431-1437