Foreign Relations of the United States, 1945 - 1972
Foreign Relations of the United States, 1861 - 1960
Foreign Relations of the United States, 1861 to date
Paper format: D. H. Hill Documents Stacks S 1.1:
The Foreign Relations of the United States series presents the official documentary historical record of major U.S. foreign policy decisions and significant diplomatic activity.
The volumes include declassfied documents, but for this reason there's considerable delay in publishing them. The most recent volumes issued cover the Nixon/Ford administrations, 1969-1972, and are still being released.
A University of Wisconsin digitization project is the source of the 1861-1960 volumes.

A Century of Lawmaking For a New Nation: U.S. Congressional Documents and Debates
Good source for historical information -- consists of a linked set of published congressional records of the United States of America from the Continental Congress through the 43rd Congress, 1774-1875.

Chronological History of U.S. Foreign Relations -- D. H. Hill Reference E183.7 .B745 2003 (6th floor, Reference stacks) [3 vols.]

Encyclopedia of U.S. Foreign Relations -- D. H. Hill Reference E183.7 .E53 1997 (Ready Reference - Reserve Room) [4 vols.]

Encyclopedia of the United Nations and International Agreements -- D. H. Hill Reference KZ4968 .O84 2003 (6th floor, Reference stacks) [4 vols.]

Greenwood Encyclopedia of International Relations -- D. H. Hill Reference JZ1160 .N65 2002 (Ready Reference - Reserve Room) [4 vols.]