Citação norma APA

Third international safety conference. (1975). Hazards in tunnelling and on falsework. Institution of civil engineers.

Citação norma Chicago

Third international safety conference. Hazards in Tunnelling and on Falsework. London: Institution of civil engineers, 1975.

Citação norma MLA

Third international safety conference. Hazards in Tunnelling and on Falsework. Institution of civil engineers, 1975.

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.