Lua APA (7ú heag.)

Mansfield, E. (1968). The economics of technological change. Longmans.

Lua i Stíl Chicago (17ú heag.)

Mansfield, Edwin. The Economics of Technological Change. [London]: Longmans, 1968.

Lua MLA (9ú heag.)

Mansfield, Edwin. The Economics of Technological Change. Longmans, 1968.

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