author = { Ur, Penny },

title = { Correspondence },

publisher = {Oxford University Press (OUP)},

isbn = {0951-0893},

isbn = {1477-4526},

keywords = { Developmental and Educational Psychology , Education , Language and Linguistics },

year = {1989},

url = { https://katalog.slub-dresden.de/en/?cHash=a8fa44d3bda0cb9d524c2f0ab6715df9&tx_find_find%5Baction%5D=citation&tx_find_find%5Bcontroller%5D=Search&tx_find_find%5Bid%5D=ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA5My9lbHQvNDMuMS43Mw&tx_find_find%5Btype%5D=bibtex }