Bernard Lentz.
The Cadence system of teaching close order drill.
R665079. The Cadence system of teaching close order drill. By Bernard Lentz. NM: additions & revisions. © 4Jan50; AA140047. Bernard V. Lentz, Jerome H. Lentz & Louise L. Bankard (C); 20Jun77; R665079.
Bernard V. Lentz, Jerome H. Lentz & Louise L. Bankard|C