Cita APA

Perrett, H. E., & Lethem, F. (1980). Human factors in project work. Washington: World Bank.

Citación estilo Chicago

Perrett, Heli E., and Francis Lethem. Human Factors in Project Work. Washington: World Bank, 1980.

Cita MLA

Perrett, Heli E., and Francis Lethem. Human Factors in Project Work. Washington: World Bank, 1980.