The R&D master file documentation
By: Bronwyn H. Hall ... [et al.].
Series: NBER technical working paper series -- technical working paper no. 72; Technical working papers -- technical working paper no. 72.
Publisher: National Bureau of Economic Research
Published: 1988
Place of publication: Cambridge, MA
Language: eng
Number of pages: 49
Subjects: Research, Industrial -- Economic aspects.; Patents -- Economic aspects.
Other titles: R and D master file documentation.
Notes: Includes bibliographical references.