v. 1. Superintendent of Documents classification number index of U.S. Government author-organizations. Table of contents of microfilm reels.

v. 2. U.S. Government author-organization index.

v. 3. Departmental keyword indexes to U.S. Government author-organizations.

v. 4. U.S. Government serial titles, 1789-1970.

v. 5. Master keyword index to the publication-issuing offices of the U.S. Government, 1789-1970.