FREILICH, AARON.
Plane trigonometry (with answers) by Aaron Freilich, Henry H. Shanholt & Joseph P. McCormack. NM: additions & revisions.
FREILICH, AARON. Plane trigonometry (with answers) by Aaron Freilich, Henry H. Shanholt & Joseph P. McCormack. NM: additions & revisions. © 5Nov43; A176717. Madeline Shanholt (W of H. H. Shanholt); 15Dec70; R497045.
Madeline Shanholt|W of H. H. Shanholt