Cite
Black American heritage commemorated in U.S. postage stamps, fifty years [graphic].
MLA
Not Available. "Black American heritage commemorated in U.S. postage stamps, fifty years [graphic].." Library of Congress. 1991, http://hdl.loc.gov/loc.pnp/ppmsca.49362.
APA
Not Available (1991). Black American heritage commemorated in U.S. postage stamps, fifty years [graphic].. Retrieved from http://hdl.loc.gov/loc.pnp/ppmsca.49362
Chicago
Not Available. "Black American heritage commemorated in U.S. postage stamps, fifty years [graphic].." 1991. April 21, 2026. http://hdl.loc.gov/loc.pnp/ppmsca.49362.