机读格式显示(MARC)

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• 110 2_ |a Political and Economic Planning.

• 245 10 |a World population and resources : |b a report by PEP.

• 260 __ |a London : |b Political and Economic Planning, |c 1955.

• 300 __ |a xxxvii, 339 p. : |b ill. ; |c 23 cm.

• 650 _0 |a Population.

• 650 _0 |a Natural resources.

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