Crystal, D. (1992). An Encyclopedic Dictionary Of Language and Languages. Penguin Books.
Citación estilo ChicagoCrystal, David. An Encyclopedic Dictionary Of Language and Languages. England: Penguin Books, 1992.
Cita MLACrystal, David. An Encyclopedic Dictionary Of Language and Languages. Penguin Books, 1992.
Warning: These citations may not always be 100% accurate.