Crawley, S. L. (Sumner Lee), 1901–1981
Nationality: Undetermined, possibly 
(United States)
Identities and Authority Control
- pdbooks.info ID: 97218
S. L. (Sumner Lee) Crawley Contributed to the Following:
| Title | Edition | Year of Publication | Role | Country of Publication | Possible Copyright Status | Available Online? | |||
|---|---|---|---|---|---|---|---|---|---|
|  |  | 
| ||||||
| Studying efficiently | 1936 | Author | |  | |  | | ||