About: http://webisa.webdatacommons.org/178647236

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	The book is a practical guide to the essentials of English usage and to the problems of English grammar that foreign students have difficulty with.
http://www.w3.org/ns/prov#wasQuotedFrom	twirpx.com