TY  - BOOK
AU  - Sidders,P.A.
AU  - Allen,Clarence Edgar
TI  - Guide to world screw threads
SN  - 0831110929
PY  - 1969///
CY  - New York
PB  - Industrial Press
KW  - Screw threads, Standard
N1  - Sixth  and 15th ed. entered under C. E. Allen have title: Machinery's screw thread  book. 20th ed. entered under title: Machinery's screw thread book
ER  -