Underground railroad /
produced by the Division of Publications, National Park Service.
APA Citation
United States. National Park Service. Division of Publications. (1998). Underground railroad. Washington, D.C.: Dept. of the Interior.
MLA Citation
United States. National Park Service. Division of Publications. Underground Railroad. Washington, D.C.: Dept. of the Interior, 1998.
Warning: These citations may not always be complete (especially for serials).