@BOOK{ Book!D - 89940970,
AUTHOR = " Robert Feldt, Lyle Johnson ; technical editor, Michael Neumann.",
TITLE = "Ruby developer's guide",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Object-oriented programming (Computer science),Ruby (Computer program language)",
URL = "/book/89940970/Ruby-developers-guide/"}