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Periodical

A time to mend.

Subjects: *ECOLOGY

  • Source: Sierra. Sep/Oct88, Vol. 73 Issue 5, p50. 6p.

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Periodical

Where muck needs raking.

Subjects: *ECOLOGYONONDAGA Lake (N.Y.); NEW York (State); UNITED States

  • Source: Sierra. Jan/Feb90, Vol. 75 Issue 1, p136. 2p. 1 Color Photograph.

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Periodical

A wild, swinging river.

Subjects: *ECOLOGY; GLEN Canyon Dam (Ariz.)ARIZONA; UNITED States

  • Source: Sierra. May/Jun90, Vol. 75 Issue 3, p22. 4p. 1 Illustration.

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Periodical

As a matter of fact, I do have an opinion on that...

Subjects: *ECOLOGY

  • Source: Sierra. Mar/Apr91, Vol. 104 Issue 13, p23. 1/3p.

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Periodical

Political science.

Subjects: *RESEARCH; *POLITICAL scienceUNITED States

  • Source: Sierra. Sep/Oct92, Vol. 77 Issue 5, p35. 4p.

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Periodical

Beyond the reality principle.

Subjects: *ECOLOGY

  • Source: Sierra. Mar/Apr93, Vol. 78 Issue 2, p58. 6p. 2 Color Photographs.

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Periodical

Two routes diverge.

Subjects: *ECOLOGY

  • Source: Sierra. Jul/Aug93, Vol. 78 Issue 4, p40. 1p. 1 Color Photograph.

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