Catalogue Persistent Identifier
http://nla.gov.au/nla.cat-vn965121
APA Citation
Hughes, Joan K. (1979). PL/I structured programming. New York : Wiley, http://www.loc.gov/catdir/enhancements/fy0607/78015665-t.html
MLA Citation
Hughes, Joan K. PL/I structured programming / Joan K. Hughes Wiley New York 1979 <http://www.loc.gov/catdir/enhancements/fy0607/78015665-t.html>
Australian/Harvard Citation
Hughes, Joan K. 1979, PL/I structured programming / Joan K. Hughes Wiley New York <http://www.loc.gov/catdir/enhancements/fy0607/78015665-t.html>
Wikipedia Citation
{{Citation
| title=PL/I structured programming / Joan K. Hughes
| author1=Hughes, Joan K. (Joan Kirkby)
| publisher=Wiley
| language=English
}}








