Proceedings - Institution of Civil engineers (London : Institution of Civil engineers)
1968/1972 (7057-7058,7086,7130,7184,7196,7200,7206,7209,7224,7232,7236,7254,7266,7268,7270,7275,7300,7307,7323,7328,7334,7339,7350,7355,7360,7362,7367,7415,7418-7419,7441,7445,7455,7478,7483,7495,7506,7517)