About: http://webisa.webdatacommons.org/147786201

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 author provides questions and answers at the end of each chapter, plus exercises in such skills as plotting a course.
http://www.w3.org/ns/prov#wasQuotedFrom	sailingtexas.com