New Zealand. Soil Bureau. (1962). Soil Bureau handbook. New Zealand Dept. of Scientific and Industrial Research.
Dyfyniad Arddull ChicagoNew Zealand. Soil Bureau. Soil Bureau Handbook. [Wellington]: New Zealand Dept. of Scientific and Industrial Research, 1962.
Dyfyniad MLANew Zealand. Soil Bureau. Soil Bureau Handbook. New Zealand Dept. of Scientific and Industrial Research, 1962.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.