٨٧ - Paget, R. Human Speech. London, ١٩٣٠.
٨٨ - Palmer, F. R. Linguistics Hierarchy. "Lingua" VII, pp. ٢٢٥ - ٢٤١, ١٩٥٨.
٨٩ - Palmer, Harold E.
The Principles of Language Study London ١٩٢١.
٩٠ - Palmer, Harold E.
A First Course In English Phonetics Cambridge, ١٩٢٢.
٩١ - Palmer, Harold E. English Intonation Cambridge, ١٩٢٢.
٩٢ - Palmer, Harold E.
A Grammar Of Spoken English. Cambridge, ١٩٢٤.
٩٣ - Palmer, Harold E.
The Scientific Study And Teaching Of Languages Yonkers-on-Hudson; World Book Co.
٩٤ - Palmer, Harold E.,; Martin, J. V.; Blandfored M. A.:
A Dictionary Of English Pronunciation with American Variants. Cambridge, ١٩٢٦.
٩٥ - Paul, Hermann:
Principles Of The History of Language. Translated from German By H. A. Strong, ٢ ed. New York, Macmillan, ١٨٨٩.
٩٦ - Pedersen, H.
Linguistic Science In The Nineteenth Century.
English Translation By J. Spargo.
Cambridge, Harvard University Press, U. S. A. ١٩٣١.
٩٧ - Pei, Mario
(Prof. In Columbia University) .
The Story of Language.
J. B. Lippincott Company, Publishers, Philadelphia.