Fracture at work: The Fourth Tewksbury Symposium of Fracture, February 12-14 1979 / Editors: D.S. Mansell, G.H.Vasey. - Melbourne : Melbourne University, 1979. - various pagings. ISBN: 0858500132 LCCN: 55051753 Subjects--Topical Terms: Fracture mechanics.Strength of materials.