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  1. 1
    by Ward, Barbara, 1914-1981
    Published 1972
    “...United Nations Conference on the Human Environment...”
    Conference Proceeding Book
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    Saved in:
    Only one earth : the care and maintenance of a small planet: an unofficial report commissioned by the Secretary-General of the United Nations Conference on the Human Environment /
  2. 2
    Published 1972
    “...United Nations Conference on the Human Environment...”
    Conference Proceeding Book
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    Saved in:
    Pollution : nuisance or nemesis? : a report on the control of pollution : presented in February 1972 to the Secretary of State for the Environment.
  3. 3
    Published 1972
    “...United Nations Conference on the Human Environment...”
    Conference Proceeding Book
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    Saved in:
    The New Zealand environment : national report to the United Nations Preparatory committee for the 1972 Conference on the Human Environment.

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