Američki engleski jezik — разлика између измена

* {{Cite book-lat|last=Crystal|first=David|year=1997|title = English as a Global Language|location=Cambridge|publisher=Cambridge University Press|idisbn=ISBN 978-0-521-53032-3|pages=}}

* {{Cite book-lat|last=Labov|first=William|last2=Ash|first2=Sharon|last3=Boberg|first3=Charles|author3link=Charles Boberg| ref = harv |year=2006|title = The Atlas of North American English|location=Berlin|publisher=Mouton de Gruyter|idisbn=ISBN 978-3-11-016746-7}}