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National Geographic
> Nancy Holler Aulenbach
Nancy Holler 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
H.A.
·
n/a
·
N. H.
·
Nancy A.
Nancy Holloway