BRUECKNER, LEO J.
New triangle tests in arithmetic processes and Individual progress chart. Grade 4-8. NM: revisions & additions.
BRUECKNER, LEO J. New triangle tests in arithmetic processes and Individual progress chart. Grade 4-8. NM: revisions & additions. © 19Nov36; AA223467-223471. Leo J. Brueckner (A); 3Dec63; R326744-326748.
Leo J. Brueckner|A