Use of numbers
Subtitle: prepared for aircraft flight and ground crews.
By: Copyright ... by Airlines war training institute ...
Contributors: Morgan, Howard Key, 1906-
Published: 1942
Place of publication: Washington, D.C
Language: eng
Number of pages: 81
Subjects: Mathematics.; Slide-rule.
Notes: Reproduced from type-written copy.
"Preparation: Howard K. Morgan; illustration: William Damon."