330.5 / N20sp
The rate and direction of inventive activity : economic and social factor / .- New York: Princeton University Press, 1962 .- 635.
Subject Headings:
Economic factor;
Copy Details:
Acc. No.: 56855, Full Call No.: 330.5 N20sp, (v. 13) Item type: Books , Location: COMPACT STORAGE (BASEMENT),
------------------------- --------------------- ------ --------- ------- ------- --------- --------
The rate and direction of inventive activity : economic and social factor / .- New York: Princeton University Press, 1962 .- 635.
Subject Headings:
Economic factor;
Copy Details:
Acc. No.: 56855, Full Call No.: 330.5 N20sp, (v. 13) Item type: Books , Location: COMPACT STORAGE (BASEMENT),
------------------------- --------------------- ------ --------- ------- ------- --------- --------