American Association Of School Librarians. (1960). Standards for school library programs.
استشهاد بنمط شيكاغوAmerican Association Of School Librarians. Standards for School Library Programs. 1960.
MLA استشهادAmerican Association Of School Librarians. Standards for School Library Programs. 1960.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.