Helander, M. (1981). Ergonomics for building and construction. John Wiley and Sons.
Cita Chicago Style (17a ed.)Helander, Martin. Ergonomics for Building and Construction. John Wiley and Sons, 1981.
Cita MLA (9a ed.)Helander, Martin. Ergonomics for Building and Construction. John Wiley and Sons, 1981.
Precaución: Estas citas no son 100% exactas.