N. V. Tatsenko introduction to theoretical phonetics of english

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Rhythm forms an important part of style: careful, deliberate speech tends to go with regular rhythm and slow speed. Casual speech, as well as being less rhythmical and faster, tends to include a lot of "fillers" - such as hesitation noises (usually written 'um' or 'er') or exaggeratedly long vowels to cover a hesitation. It should now be clear that the pronunciation described in this course is only one of a vast number of possible varieties. The choice of a slow, careful style is made for the sake of convenience and simplicity; learners of English need to be aware of the fact that this style is far from being the only one they will meet, and teachers of English to foreigners should do their best to expose their students to other varieties.
THE LIST OF REFERENCES

1. 
   Collins Beverly, Inger M. Mees. Practical Phonetics and Phonology : A Resource Book for Students. Second Edition. New York : Routledge, 2008. 305 p.
   
2. 
   Cruttenden Alan. Gimson's Pronunciation of English. Seventh edition. Routlege, 2013. 362 p.
   
3. 
   Giegerich Heinz. English Phonology : An Introduction. Cambridge : Cambridge University Press, 1992. 333 p.
   
4. 
   Jenkins Jennifer. The Phonology of English as an International Language. Oxford : Oxford University Press, 2000. 258 p.
   
5. 
   Kreidler Charles W. The Pronunciation of English. A Course Book. Second edition. Blackwell Publishing, 2004. 313 p.
   
6. 
   Ladefoged Peter, Johnson Keith. A Course in Phonetics. Seventh edition. Cengage Learning, 2014. 352 p.
   
7. 
   McMahon April. An Introduction to English Phonology. Edinburg University Press, 2002. 159 p.
   
8. 
   Morley J. Pronunciation Pedagogy and Theory : New Views, New Dimensions. Alexandria, VA : TESOL, 1994. 156 p.
   
9.