Universal percentile graph.

Monroe's reading aptitude tests; table of percentiles, by Marion Monroe.

SEE Clark, John R. Normal percentile chart; manual of directions.

SEE Clark, John R. Normal percentile chart.

Universal percentile graph.

Monroe's reading aptitude tests; table of percentiles, by Marion Monroe.

SEE Clark, John R. Normal percentile chart; manual of directions.

SEE Clark, John R. Normal percentile chart.