ઢાંચો:ELL2
Keith Brown, સંપાદક (૨૦૦૫). Encyclopedia of Language and Linguistics (2 આવૃત્તિ). Elsevier. ISBN 0-08-044299-4. {{cite book}}: Invalid |ref=harv (મદદ)
Keith Brown, સંપાદક (૨૦૦૫). Encyclopedia of Language and Linguistics (2 આવૃત્તિ). Elsevier. ISBN 0-08-044299-4. {{cite book}}: Invalid |ref=harv (મદદ)
