International Society of Soil Mechanics and Foundation Engineering. Belgian Group. (1958). Conference de Bruxelles 58 sur les problemes de pressions de terres: Brussels Conference 58 on earth pressure problems. Rapports: proceedings. International Society of Soil Mechanics.
Chicago-viite (17. p.)International Society of Soil Mechanics and Foundation Engineering. Belgian Group. Conference De Bruxelles 58 Sur Les Problemes De Pressions De Terres: Brussels Conference 58 on Earth Pressure Problems. Rapports: Proceedings. Bruxelles: International Society of Soil Mechanics, 1958.
MLA-viite (8. p.)International Society of Soil Mechanics and Foundation Engineering. Belgian Group. Conference De Bruxelles 58 Sur Les Problemes De Pressions De Terres: Brussels Conference 58 on Earth Pressure Problems. Rapports: Proceedings. International Society of Soil Mechanics, 1958.