APA aipamena

Greenleaf, W. (1968). American economic development since 1860. University of South Carolina.

Chicago Style aipamena

Greenleaf, William. American Economic Development Since 1860. Columbia: University of South Carolina, 1968.

MLA aipamena

Greenleaf, William. American Economic Development Since 1860. University of South Carolina, 1968.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.