U.S. Dept. of the Interior, Geological Survey,

U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics ; For sale by the U.S. G.P.O., Supt. of Docs.,

Tyndale House Pub.,

Atheneum,

Harper & Row: Educational Products,

The Club,

Lane Book Company,

Corner House Publishers,

University of Nebraska Press,

Singing Tree Press,

Wyoming Game and Fish Dept., ;