Geotechnical Conference (1967 : Oslo) & Norwegian Geotechnical Institute. (1967). Proceedings of the Geotechnical Conference on Oslo 1967 on shear strength properties of natural soils and rocks: Comptes Rendus de la Conference Geotechnique Oslo 1967 sur les propietes de resistance au cisailement des sols naturels et des roches. Norwegian Getechnical Institute.
Chicago-viite (17. p.)Geotechnical Conference (1967 : Oslo) ja Norwegian Geotechnical Institute. Proceedings of the Geotechnical Conference on Oslo 1967 on Shear Strength Properties of Natural Soils and Rocks: Comptes Rendus De La Conference Geotechnique Oslo 1967 Sur Les Propietes De Resistance Au Cisailement Des Sols Naturels Et Des Roches. Oslo: Norwegian Getechnical Institute, 1967.
MLA-viite (9. p.)Geotechnical Conference (1967 : Oslo) ja Norwegian Geotechnical Institute. Proceedings of the Geotechnical Conference on Oslo 1967 on Shear Strength Properties of Natural Soils and Rocks: Comptes Rendus De La Conference Geotechnique Oslo 1967 Sur Les Propietes De Resistance Au Cisailement Des Sols Naturels Et Des Roches. Norwegian Getechnical Institute, 1967.