[6th grade
Subtitle: interactions and interdependence].
Contributors: United States. National Park Service.
Series: Connections; Connections
Publisher: National Park Service
Published: 1992
Place of publication: [Washington, D.C?
Language: eng
Subjects: Animal-plant relationships -- Study and teaching (Elementary) -- United States.; Ecology -- Study and teaching (Elementary) -- United States.
Other titles: Interactions and interdependence.
Notes: Title from P. [1].

Shipping list no.: 92-095-P.