Oaks, acorns, climate and squirrels
Subtitle: an environmental investigation into elements of a natural cycle : a teacher's preparation
By: edited and published by National Wildlife Federation ; design and illustrations by Jan Blyler.
Publisher: National Wildlife Federation.
Published: 1971
Place of publication: Washington D.C
Language: eng
Notes: "One of a group of environmental Units written by the Environmental Science Center which is now the environmental education unit of the Minnesota Environmental Sciences Foundation, Inc." - inside front cover.