Cita APA (7th ed.)

Lehrer, R. N. (1957). Work simplification: Creative thinking about work problems.

Cita Chicago (17th ed.)

Lehrer, Robert N. Work Simplification: Creative Thinking About Work Problems. Englewood Cliffs, N. J, 1957.

Cita MLA (8th ed.)

Lehrer, Robert N. Work Simplification: Creative Thinking About Work Problems. 1957.