Merkoša sitáhtat

APA-čujuhus (7. p.)
Pauline J Lawrence & Goodhart, D. (1968). Concepts in american history. Cambridge books.
Chicago-čujuhus (17. p.)
Pauline J Lawrence juo David Goodhart. Concepts in American History. New York: Cambridge books, 1968.
MLA-čujuhus (9. p.)
Pauline J Lawrence juo David Goodhart. Concepts in American History. Cambridge books, 1968.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.