APA (7th ed.) Zitazioa

Sampson, R. J. (1983). The American economy: Analysis issues principles. Houghton Mifflin.

Chicago Style (17th ed.) Zitazioa

Sampson, Roy J. The American Economy: Analysis Issues Principles. Boston: Houghton Mifflin, 1983.

MLA (9th ed.) Zitazioa

Sampson, Roy J. The American Economy: Analysis Issues Principles. Houghton Mifflin, 1983.