@BOOK{ Book!D - 90222669,
AUTHOR = " written by Richard Parsons.",
TITLE = "GCSE Edexcel mathematics for the grade 9-1 course :",
LIBRARY= "مرکز و کتابخانه مطالعات اسلامی به زبان‌های اروپایی",
SUBJECT = "Mathematics-- Examinations, Study guides.,Mathematics, Problems, exercises, etc., Juvenile literature.,Mathematics-- Examinations.,Mathematics.",
URL = "/book/90222669/GCSE-Edexcel-mathematics-for-the-grade-91-course/"}