Plant puzzles
Subtitle: an environmental investigation
By: [edited and published] by National Wildlife Federation ; [written by] Minnesota Envirnomental Sciences Foundation, Inc. ; designed and illustrated by Jan Blyler
Contributors: Blyler, Jan; National Wildlife Federation
Series: Environmental discovery series
Publisher: The Federation
Published: 1972
Place of publication: Washington
Language: eng
Number of pages: 16
Subjects: Trees -- Study and teaching (Elementary); Natural history -- Study and teaching (Elementary); Science -- Study and teaching (Elementary)
Notes: Cover title: "A teacher's preparation for plant puzzles : an environmental investigation into natural structure."