Service lives of fixed assets /

by Blades, Derek.
Published 1983

Discrepancies between imports and exports in OECD foreign trade statistics /

by Blades, Derek.
Published 1985

The OECD compatible trade and production data base /

by Blades, Derek.
Published 1985

Service activities in developing countries : an analysis based on national accounts /

by Blades, Derek W.
Published 1974