TY  - BOOK
AU  - Singleton,Jill
TI  - Writers at work: the paragraph 
SN  - 9780521545228
PY  - 2010///
CY  - New York
PB  - Cambridge Univ. Press
KW  - English language
KW  - Paragraphs problems, execises etc
KW  - textbooks for foreign speakers
ER  -