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- 73015171 abstract "Experiments demonstrating ecological relationships, using soil, water, and living plants and animals.".
- 73015171 contributor B2236599.
- 73015171 contributor B2236600.
- 73015171 created "1974.".
- 73015171 date "1974".
- 73015171 date "1974.".
- 73015171 dateCopyrighted "1974.".
- 73015171 description "Bibliography: p. [98]-100.".
- 73015171 description "Experiments demonstrating ecological relationships, using soil, water, and living plants and animals.".
- 73015171 extent "viii, 109 p.".
- 73015171 identifier "0385033575038508000X (lib. bdg.)".
- 73015171 issued "1974".
- 73015171 issued "1974.".
- 73015171 language "eng".
- 73015171 publisher "Garden City, N.Y., Doubleday,".
- 73015171 subject "574.5/028".
- 73015171 subject "Ecology Experiments Juvenile literature.".
- 73015171 subject "Ecology Experiments.".
- 73015171 subject "QH541.14 .S38".
- 73015171 title "Food chains and ecosystems; ecology for young experimenters [by] George I. Schwartz and Bernice S. Schwartz.".
- 73015171 type "text".