Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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