The manpower outlook in Philadelphia in 1943 /

Mode of access: Internet.

Nonagricultural employment by state. 1943/47-

Mode of access: Internet.

Receiverships and trusteeships, 1894-1942 (with preliminary data to June 15, 1943) List of steam roads showing beginning and termination of receiverships or trusteeships ...

Mode of access: Internet.

Electrical insulation, 1941-1943,

Mode of access: Internet.

Bibliography of relay literature, 1940-1943; interim report by working group on relay bibliography, Relay subcommittee, AIEE Committee on protective devices ...

"Advance copy, not released for publication."