@BOOK{ Book!D - 90019797,
AUTHOR = " David A. Black",
TITLE = "The well-grounded Rubyist",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Object-oriented programming languages,Open source software,Ruby (Computer program language)",
URL = "/book/90019797/The-wellgrounded-Rubyist/"}