TY - BOOK AU - Keen , Gilbert R. TI - Aircraft timbers (Indian): report on the investigation, selection and production of timbers for use in aeroplane construction U1 - 629.133 21st ed. PY - 1921/// CY - Simla PB - Government Monotype Press KW - Aircraft industry KW - Timber-India KW - Wood N1 - Index: pp 147-51 ER -