Cita APA (7th ed.)

RIGGS JAMES L. (1983). PRODUCTIVITY BY OBJECTIVES. PRENTICE -HALL INTERNATIONAL, INC.

Cita Chicago (17th ed.)

RIGGS JAMES L. PRODUCTIVITY BY OBJECTIVES. NEW JERSE: PRENTICE -HALL INTERNATIONAL, INC, 1983.

Cita MLA (9th ed.)

RIGGS JAMES L. PRODUCTIVITY BY OBJECTIVES. PRENTICE -HALL INTERNATIONAL, INC, 1983.