Third international safety conference. (1975). Hazards in tunnelling and on falsework. Institution of civil engineers.
استشهاد بنمط شيكاغوThird international safety conference. Hazards in Tunnelling and on Falsework. London: Institution of civil engineers, 1975.
MLA استشهادThird international safety conference. Hazards in Tunnelling and on Falsework. Institution of civil engineers, 1975.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.