Cite
Letter, 1950 Mar. 16, (Washington, D.C.), John Edgar Hoover, to Joseph A. De Laine, Sr., (Columbia, S.C.)
MLA
Hoover, John Edgar. "Letter, 1950 Mar. 16, (Washington, D.C.), John Edgar Hoover, to Joseph A. De Laine, Sr., (Columbia, S.C.)." South Caroliniana Library. 1950-03-16, http://digital.tcl.sc.edu/cdm/ref/collection/jad/id/638.
APA
Hoover, John Edgar (1950-03-16). Letter, 1950 Mar. 16, (Washington, D.C.), John Edgar Hoover, to Joseph A. De Laine, Sr., (Columbia, S.C.). Retrieved from http://digital.tcl.sc.edu/cdm/ref/collection/jad/id/638
Chicago
Hoover, John Edgar. "Letter, 1950 Mar. 16, (Washington, D.C.), John Edgar Hoover, to Joseph A. De Laine, Sr., (Columbia, S.C.)." 1950-03-16. July 31, 2025. http://digital.tcl.sc.edu/cdm/ref/collection/jad/id/638.