Trích dẫn APA

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

Trích dẫn kiểu Chicago

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

Trích dẫn MLA

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

Cảnh báo: Các trích dẫn này có thể không phải lúc nào cũng chính xác 100%.