Front matter
Reading edition

USDA FOREST SERVICE RESEARCH PAPER NC-52 1971
Ecological Studies of the TIMBER WOLF in Northeastern Minnesota

NORTH CENTRAL FOREST EXPERIMENT STATION FOREST SERVICE U. S. DEPARTMENT OF AGRICULTURE
Reading edition

USDA FOREST SERVICE RESEARCH PAPER NC-52 1971

NORTH CENTRAL FOREST EXPERIMENT STATION FOREST SERVICE U. S. DEPARTMENT OF AGRICULTURE