Eric Porter Productions, New South Wales. Dept. of Main Roads, & anks, T. (1960). Sampling and testing of road soils and pavement materials. Eric Porter Productions.
Tohutoru Kātū ChicagoEric Porter Productions, New South Wales. Dept. of Main Roads, me Terry anks. Sampling and Testing of Road Soils and Pavement Materials. Sydney, New South Wales: Eric Porter Productions, 1960.
Tohutoro MLAEric Porter Productions, et al. Sampling and Testing of Road Soils and Pavement Materials. Eric Porter Productions, 1960.
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