Update books4.csv

books4.csv

@@ -1,4 +1,4 @@
-ltable.Title,ltable.Author,ltable.ISBN_13,ltable.Publisher,rtable.Title,rtable.Author,rtable.ISBN_13,rtable.Publisher,gold
+A_Title,A_Author,A_ISBN_13,A_Publisher,B_Title,B_Author,B_ISBN_13,B_Publisher,label
 Schaum's Outline of Essential Computer Mathematics,Seymour Lipschutz,978-0070379909,McGraw-Hill Education,Schaum's Outline of Essential Computer Mathematics / Edition 1,Seymour Lipschutz,978-0070379909,McGraw-Hill Professional Publishing,1
 Digital Signal Processing: A Computer-Based Approach,Sanjit K. Mitra,978-0070429536,Mcgraw-Hill College,Optical Filter Design and Analysis: A Signal Processing Approach / Edition 1,Christi K. Madsen# Jian H. Zhao,978-0471183730,Wiley,0
 Schaum's Outline of Computer Networking,Ed Tittel,978-0521782586,McGraw-Hill Education,Schaum's Outline of XML,Ed Tittel,978-0071398350,McGraw-Hill Education,0