J G Harrar

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  • J G Harrar
  • Proceedings of the National Academy of Sciences…
  • 1970
There is currently a wide divergence of opinion as to whether in the year 2000 there will be sufficient food supplies to feed a prospective world population of 7 billion. The pessimists warn that(More)
Het aantat handboeken over planteziekten is de laatste jaren sterk toegenomen en er is een grote keuze uit meet of minder omvangrijke boeken in velerlei talen. In bet algemeen behandelen deze na een(More)
There is ample justification for concern about adequate food supplies for future generations of mankind, but this concern should be broadened to include the immediate problem of an adequate standard(More)