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- [4] WORLD FOOD PROBLEMS AND PROSPECTS - JOHNSON,DG JOURNAL OF DEVELOPING AREAS, 1976, 10 (02): : 231 - 232
- [5] WORLD FOOD SITUATION - PROBLEMS AND PROSPECTS TO 1985 - WILLETT,JW ETUDES INTERNATIONALES, 1978, 9 (01): : 144 - 145
- [6] WORLD FOOD SITUATION - PROBLEMS AND PROSPECTS TO 1985 - WILLET,JW ETUDES INTERNATIONALES, 1977, 8 (04): : 674 - 675