Tephra studies : proceedings of the NATO Advanced Study Institute "Tephra Studies as a Tool in Quaternary Research", held in Laugarvatn and Reykjavîk, Iceland, June 18-29, 1980
edited by S. Self and R.S.J. Sparks
(NATO advanced study institutes series, ser. C . Mathematical and physical sciences ; v. 75)
D. Reidel , NATO Scientific Affairs Division , Sold and distributed in the U.S.A. and Canada by Kluwer Boston, c1981