by
Boylan, Michael, 1952-
Format:
Books
Publication Date
2014
Excerpt:
: -- Environmental ethics: values in and duties to the natural world / Respect for nature: a theory of environmental
by
Sobel, David, 1949-
Format:
Books
Publication Date
2008
Excerpt:
Childhood and nature : design principles for educators / Sobel, David, 1949-
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