Alaska Dept. of Education, Office of Instructional Services,
Ecosystems of the great land. Teacher's manual
Ecosystems of the great land : a six part instructional television series
Strom-Aronson, Melissa.
Pohl, Janis.
Northern Institute (Anchorage, Alaska)
Alaska. Dept. of Education. Office of Instructional Services.
[writers, Melissa Strom-Aronson, Janis Pohl].
Ecosystems of the great land. Teacher's manual