TY  - BOOK
AU  - Kollmann,Franz
AU  - Sekhar, A. C.
TI  - On measurement of toughness in timber: some preliminary investigations 
U1  - 634.9 
PY  - 1954///
CY  - Delhi
PB  - Manager of Publications
KW  - Forests and forestry
KW  - india
ER  -