The economics of technological change.
MANSFIELD,Edwin.
The economics of technological change. - ed. - London : Longmans, 1969. - 257 p. : ill ; cm.
includes bibliographical reference and index.
Technological innovations- United States.
Research, industrial.
The economics of technological change. - ed. - London : Longmans, 1969. - 257 p. : ill ; cm.
includes bibliographical reference and index.
Technological innovations- United States.
Research, industrial.