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Paul E. Lehr

8 books

160 pages paperback

nonfiction nature reference informative slow-paced

missing page info 2001

informative slow-paced

160 pages hardcover 1957

163 pages digital 2001

nonfiction reference informative slow-paced

160 pages paperback 1957

nonfiction science

160 pages 1957

nonfiction nature reference science informative reflective slow-paced

160 pages paperback 1977

nonfiction nature reference science informative medium-paced

160 pages paperback 1977

nonfiction nature reference science informative medium-paced