The Book on U.S. savings bonds :
a guide for issuing and paying agents.

APA Citation

United States. U.S. Savings Bonds Division. (1985). The Book on U.S. savings bonds: a guide for issuing and paying agents. [Washington, D.C.?]: U.S. Savings Bonds Division, Dept. of the Treasury.

MLA Citation

United States. U.S. Savings Bonds Division. The Book On U.S. Savings Bonds: a Guide for Issuing And Paying Agents. [Washington, D.C.?]: U.S. Savings Bonds Division, Dept. of the Treasury, 1985.

Warning: These citations may not always be complete (especially for serials).