1. Petrology of the volcanic rocks of Tongariro Subdivision;Clark;N. Z. Geol. Surv., Bul.,1960
2. The White Island Trench: a submarine graben in the Bay of Plenty, New Zealand;Fleming;7th Pac. Sci. Congo Proc.,1952
3. N. Z. Geol. Surv., Bul.;Grange,1937
4. N. Z. Geol. Surv., Bul.;Gregg,1960