%0 Generic %C [S.l.] : %D 1972. %I IEEE, %@ 9780738109510 %@ 0738109517 %T Y32.9-1972 - American National Standard Graphic Symbols for Electrical Wiring and Layout Diagrams Used in Architecture and Building Construction %U http://SK8ES4MC2L.search.serialssolutions.com/?sid=sersol&SS_jc=TC_036329462&title=Y32.9-1972%20-%20American%20National%20Standard%20Graphic%20Symbols%20for%20Electrical%20Wiring%20and%20Layout%20Diagrams%20Used%20in%20Architecture%20and%20Building%20Construction