Cita APA

Helmer, R. G. (1998). Time management: For engineers and constructors. American Society of Civil Engineers.

Citación estilo Chicago

Helmer, Ray G. Time Management: For Engineers and Constructors. Washington, D.C: American Society of Civil Engineers, 1998.

Cita MLA

Helmer, Ray G. Time Management: For Engineers and Constructors. American Society of Civil Engineers, 1998.

Warning: These citations may not always be 100% accurate.