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Dodavanje datuma u šablone za održavanje i/ili sredjivanje referenci
* Geobacter Project: [http://www.geobacter.org/press/2001-07-21-economist.pdf Gold mines may owe their origins to bacteria] (in [[Portable Document Format|PDF]] format)
* Garrett, Dennis ''Alaska Placer Mining''
* {{cite book | title = Principles of Mine Planning| edition = 2nd | last = Jayanta | first = Bhattacharya | year = 2007 | publisher = Wide Publishing | location = | isbnid = ISBN 81-7764-480-7 | page = 505}}
* Morrison, Tom (1992) ''Hardrock Gold: a miner's tale''. ISBN 978-0-8061-2442-1
* John Milne: The Miner's Handbook: A Handy Reference on the subjects of Mineral Deposits(1894) Mining operations in the 19th century.[https://books.google.com/books?id=ty0LAQAAIAAJ&pg=PA95&lpg=PA95&dq=waterways+john+milne&source=bl&ots=jDX1QlJE1A&sig=p7zYWfP1L7Z81bN2QKJeX_H-6MQ&hl=en&ei=vpeqTOOWNcKC8gb5pJirCA&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBYQ6AEwAA#v=onepage&q&f=false]
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