Books listed by ISBN
>
Cave Books
> E. M. Hatt
E. M. Hatt
title
ISBN-13
(ISBN-10)
year of publica-
tion
other author(s)
Subterranean Climbers
978-O-914264-15-6
(O-914264-15-X)
1975
Pierre Chevalier
E.H.
·
E.M.
·
M. H.
E.M. Hayes