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National Geographic
> Nancy & Hazel Barton Aulenbach
Nancy & Hazel Barton Aulenbach
title
ISBN-13
(ISBN-10)
year of publication
Exploring Caves: Journeys into the Earth
978-O-7922-7721-7
(O-7922-7721-X)
2001
A. B.
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A. H.
·
H B
·
n/a
·
N. H.
·
Nancy A.
Nancy & Meyer, W.H. (Editor) Charton