New Zealand. Geophysics Division. (1952). Technical note. The Division.
Dyfyniad Arddull ChicagoNew Zealand. Geophysics Division. Technical Note. Wellington: The Division, 1952.
Dyfyniad MLANew Zealand. Geophysics Division. Technical Note. The Division, 1952.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.