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1Published 1974### CRL customization ### ?> ### Add publisher and desc details ### ?>Lausanne : Elsevier Sequoia, [1974-v. : ill. ; 28 cm.Subjects: “...Conservation of natural resources Periodicals....”
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2Published 1991### CRL customization ### ?> ### Add publisher and desc details ### ?>New Delhi : The Fund, -1991.v. ; 28 cm.
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3Karachi : World Conservation Union.v. : ill. ; 33 cm.
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4Protection of man's natural environment; a collective work initiated and planned by Władysław Szaferby Szafer, Władysław, 1886-1970### CRL customization ### ?> ### Add publisher and desc details ### ?>
Published 1973Warszawa, PWN-Polish Scientific Publishers, 1973.663 p. illus. 25 cm.