Industrial sands of Northland and Auckland
Schofield, J.C.; Woolhouse, L., 1970, Industrial minerals and rocks, DSIR information series. Expand
Schofield, J.C.; Woolhouse, L., 1970, Industrial minerals and rocks, DSIR information series. Expand
1985, DSIR Information Series. Expand
Healy, W.B., 1980, DSIR Information Series. Expand
Healy, W.B., 1980, New Zealand DSIR Information Series. Expand