Books listed by ISBN

Angelo I George

A-G

H.M.I.Press

titleISBN-13
(ISBN-10)		year of publica-
tion
Mammoth Cave Saltpeter Works978-0-9713038-2-9
(0-9713038-2-7)		2005
Outer door to the auger hole--and beyond: The exploration of Wyandotte Cave978-0-9713038-1-2
(0-9713038-1-9)		2001

Angst im Wald