Root, D., & Irwin, J. (2000). Pennsylvania (First edition.). Fodor''s Travel Publications.
Chicago-čujuhus (17. p.)Root, Douglas, juo Jerry Irwin. Pennsylvania. First edition. Oakland: Fodor''s Travel Publications, 2000.
MLA-čujuhus (9. p.)Root, Douglas, juo Jerry Irwin. Pennsylvania. First edition. Fodor''s Travel Publications, 2000.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.