Cita APA (7th ed.)
(1979). Introduction to work study (3rd ed.). International labour office.
Cita Chicago (17th ed.)
Introduction to Work Study. 3rd ed. Geneva: International labour office, 1979.
Cita MLA (9th ed.)
Introduction to Work Study. 3rd ed. International labour office, 1979.
Atenció: Aquestes cites poden no estar 100% correctes.