Annual report of biochemical research foundation of Franklin institute (1945)

McDonald, E. | Engineering Index Backfile | 1946

Urban Institute Annual Report, 1998

NTIS | 1998

Tests on full size modern arches in Franklin institute museum

Kneas, F.N. | Engineering Index Backfile | 1935

Work of the Bartol Research Foundation of the Franklin Institute

W. F. G. Swann | NTIS | 1947

Practical deductions from the Franklin Institute tests of electric dynamos

Hering, Carl | Engineering Index Backfile | 1886