Howells, G. (1998). Consumer Product Safety Geraint Howells. Ashgate.
Cita Chicago Style (17a ed.)Howells, Geraint. Consumer Product Safety Geraint Howells. Ashgate, 1998.
Cita MLA (8a ed.)Howells, Geraint. Consumer Product Safety Geraint Howells. Ashgate, 1998.
Precaución: Estas citas no son 100% exactas.