Набор — разлика између измена

* {{Cite book| ref=harv|chapter=Figure 3.14: Geometric attributes of folded geological surfaces |pages=92 |isbn=978-0-521-83927-3 |year=2005 |publisher=Cambridge University Press |title=Fundamentals of Structural Geology |last=Pollard|first=DD|author2=RC Fletcher |url=https://books.google.com/books?id=mdDsZqOoCVwC&lpg=PP1&pg=PA92#v=onepage&f=false}}

* {{Cite book| ref = harv | title=Structural geology |last=Twiss|first=Robert J.|last2=Moores|first2=Eldridge M.|url=https://books.google.com/books?id=14fn03iJ2r8C&pg=PA220 |pages=220-221 |isbn=978-0-7167-2252-6 |year=1992 |publisher=Macmillan |edition=2nd}}

* {{Cite book| ref=harv|title=Fundamentals of structural geology |url=https://books.google.com/books?id=9atcPwpwgJ0C&printsec=frontcover#v=onepage&q=&f=false |last=Pollard|first=David D.|last2=Fletcher|first2=Raymond C.|isbn=978-0-521-83927-3 |year=2005 |publisher=Cambridge University Press}}

* {{Cite book| ref=harv|last=Davis|first=George H.|last2=Reynolds|first2=Stephen J.|year=1996 | chapter= Folds | title=Structural Geology of Rocks and Regions |pages=372-424 | publisher=New York, John Wiley & Sons |isbn=978-0-471-52621-6|pages=}}

* {{Cite book| ref=harv|author=McKnight, Tom L |author2=Hess, Darrel |year=2000 | chapter=The Internal Processes: Folding | title=Physical Geography: A Landscape Appreciation |pages=409-14 | location=Upper Saddle River, NJ | publisher=Prentice Hall |isbn=978-0-13-020263-5|pages=}}

* {{Cite book| ref=harv|author=Lisle, Richard J |year=2004 | chapter= Folding | title=Geological Structures and Maps: 3rd Edition | publisher=Elsevier |isbn=978-0-7506-5780-8| pages = 33}}