٥٠ -UAL:
International Journal of American Linguistics, New York, ١٩١٧ -.
٥١ - International Phonetic Association:
The Principles of The International Phonetic Association London, ١٩٤٩.
٥٢ - Iordan, lorgu:
An Introduction To Romance Linguistics, Its Schools And Scholars. Revised, Translated And in Parts Recast by John Orr, London, Me-thuen, ١٩٣٧. ٥٣-J A OS:
Journal of The American Oriental Society. New York (now New Haven) ١٨٥٠ -.
٥٤ - Jspersen, Otto:
No vial Lexike (International Dictionry) . Librairie Orientaliste, Paul Geuthner, Paris, ١٩٣٠.
٥٥ - Jspersen, Otto:
The System of Grammar.
٥٦ - Jspersen, Otto:
How to Teach A Foreign Language.
Translated from The Danish.. Original By Sophia Yhlen Olsen Bertel-
sen. First Published London ١٩٠٤, Reprinted ... ١٩٠٨ ... etc ١٩٤٧. George Allen & Unwin.
٥٧ - Jspersen, Otto:
A Modern English Grammar On Historical Principles. Heidelberg, ١٩٠٩ -.
٥٨ - Jspersen, Otto:
growth An Structure of The Language. Basial Blakwell, Oxford, ١٩٤٨.
٥٩ - Jspersen, Otto: ? Essentials Of English Grammar. First Published, ١٩٣٣. Seventh Impression, ١٩٤٨.
London, George Allen & Unwin Ltd.
٦٠ - Jspersen, Otto: Progress In Language. London, ١٨٩٤.