"Plum Book"

• United States Government Policy and Supporting Positions.
  Issued every 4 years.

• Adams: JK661.U55
  1960-

• Sudoc: 1980 ed. Y4.P84/10/P75/980
  1984 ed. Y4.G74/9:S.PRT.98-286
  1988 ed. Y4.P84/10:P75/988
  1992 ed. Y4.G74/9:S.PRT.102-509

• Latest on Web:
  1996, 2000, etc: http://purl.access.gpo.gov/GPO/LPS6760