"Lyndon Baines Johnson signing Civil
Rights Bill, April 11, 1968." Warren K. Leffler, photographer.
Print from photographic negative made April 11, 1968. Reproduction
numbers: LC-USZ62-95480 (b&w film copy neg. of 8x10 in.
print); LC-U9-18984-24 (b&w film neg.); LC-USZ62-91484
(b&w film copy neg.)