Schaaf, William Leonard, 1898–
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- Open Library: OL1069471A
- pdbooks.info ID: 51572
William Leonard Schaaf Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Basic concepts of elementary mathematics | 1960 | Author | |  | |  |  | 
| |
| A course for teachers of junior high school mathematics | 1928 | Author | | | | | |
| |
| Essentials of business arithmetic | 1936 | Author | | | | | | ||
| Progressive business arithmetic: an introductory course | 1930 | Author | | | | | | ||