TY  - BOOK
AU  - EL HEFNI,G.M
TI  - DIRECTORY OF SCIENTIFIC EQUIPMENTS / 
U1  - 681.75 
PY  - 1975///
CY  - [S.N] : 
PB  - ACADEMY OF SCIENTIFIC RESEARCH AND TECHNOLOGY ، 
KW  - SCIENCE
KW  - SCIENCE - EQUIPMENTS
KW  - SCIENCE - TESTING
ER  -