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> Ph.D. Philip S. Callahan
Ph.D. Philip S. Callahan
title
ISBN-13
(ISBN-10)
year of publication
Nature's Silent Music: A Rucksack Naturalist's Ireland
978-O-911311-33-4
(O-911311-33-5)
2013
D. P.
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D S
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P.P.
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P S
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Ph.D.
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Philip's
Ph.D, Philip Truscott