@BOOK{ Book!D - 103390056,
AUTHOR = "/ David Berube ",
TITLE = "Practical Ruby Gem",
LIBRARY= "كتابخانه مركزی و مركز اسناد دانشگاه شهيد چمران",
SUBJECT = "Ruby (Computer program language),Object-oriented programming (Computer science)",
URL = "/book/103390056/Practical-Ruby-Gem/"}