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American Library Association American Newspaper Annual architectural drawings area graph associated features automobile instruction manuals basis calculated circulation per issue classes coefficient of distribution column combined data component lists comprehension current reading matter curriculum daily and Sunday determination electric circuit diagrams estimated formal instruction frequency index frequency of occurrence furnished given form graphic forms employed index for combined juvenile magazines key strip libraries LINE GRAPH List 0 List list of graphic list of magazines low in frequency magazines surveyed MAP MT master list mechanical drawing method newspapers and automobile non-specialist non-technical magazines ooo'ooo's ooo'ooo's phantom drawings Philadelphia PICTORIAL MAP radio rank indices Rate and Data reader reading interests representative select magazines shaded sections specialists sub-list four sub-list six subordinate features Tables of Data tabulation sheet tally technical magazines total annual circulation total number types of graphic units of subject veer Women's Juvenile women's magazines World Almanac zines