Social security revision : hearings before the Committee on Finance, United States Senate, Eighty-first Congress, second session, on H. R. 6000, an act to extend and improve the Federal old-age and survivors insurance system, to amend the public assistance and child welfare provisions of the Social Security Act, and for other purposes.

Pt. 1. has special subtitle: Testimony and recommendations by the Social Security Administration.

Computer assisted publishing system : bookmaster user's guide.

Shipping list no.: 90-577-P.

Activity codes, organizational codes and definitions used in extramural programs : A computer-based information system on the extramural programs of NIH.

NIH manual issuance 4101.

Reservoir system analysis, conservation : Hydrologic Engineering Center computer program 23-J2-L253.

At head of cover title: Generalized computer program.