American wildlife and plants : a guide to wildlife food habits : the use of trees, shrubs, weeds and herbs by birds and mammals of the United States /
by A C Martin and others.
- 500p. : illus, map; 22 cm.
Prepared under the direction of the United States Fish and Wildlife Service at the Patuxent Research Refuge, Laurel, Maryland.
Animals--Food. Zoology--United States. Botany--United States.