IDG Books,

Universal,

Films for the Humanities & Sciences,

IGage,

Dancetime Publications,

Distributed by PBS Home Video,

Warner Bros.,

The University,

F.A. Davis,

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,