Cita APA (7th ed.)

SIEGEL, D. (1999). FUTURE YOUR ENTERPRISE. JOHN WILEY.

Cita Chicago (17th ed.)

SIEGEL, D. FUTURE YOUR ENTERPRISE. NEW YORK: JOHN WILEY, 1999.

Cita MLA (9th ed.)

SIEGEL, D. FUTURE YOUR ENTERPRISE. JOHN WILEY, 1999.