IDG Books,

Annenberg/CPB Collection,

Allied Artists Entertainment,

Time-Life Video,

Annenberg/CPB Project,

The University,

U.S. Dept. of Health and Human Services, Public Health Service, Food and Drug Administration, Center for Drugs and Biologics ; For sale by the Supt. of Docs., U.S. G.P.O.,

Johnson Pub. Co.,

Rand McNally,

Williams & Wilkins,

Lippincott-Raven,

American Society of Clinical Pathologists,