*Ohio (SSGN-729), Michigan (SSGN-727), Florida (SSGN-728), and Georgia (SSGN-729) have been converted into guided missile submarines (SSGNs) and no longer carry ballistic missiles.
─Randall Fortson, NHHC Histories and Archives Division, February 2021
Federation of American Scientists. Submarine Launched Ballistic Missiles; United States Nuclear Forces Guide. https://fas.org/nuke/guide/usa/slbm.
Friedman, Norman. U.S. Submarines Since 1945: An Illustrated Design History. Annapolis, MD: United States Naval Institute, 1994.
Polmar, Norman. Cold War Submarines: The Design and Construction of U.S. and Soviet Submarines, 1945–2001. Washington, DC: Potomac Books, 2004.