TY - GEN TI - Biased Technical Change and Economic Conservation Laws SN - 978-0-387-79921-6 AV - كتب إلكترونية PB - Springer KW - Business and Economics N1 - Subscription to database on August 2010 UR - http://www.springerlink.com/openurl.asp?genre=book&isbn=978-0-387-26055-6 ER -