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Outsourcing of services and productivity growth in goods industries
Raa, Thijs ten, (1994)
Dienstleistungen im Maschinenbau
Clement, Werner, (1990)
Occupational employment in transportation, communications, utilities, and trade
Hyland, Patricia Y., (1985)
Vosproizvodstvo konečnogo obščestvennogo produkta SŠA
Grornov, E. A., (1966)
Kak ocenivat' techničeskij progress?
Zubčaninov, V. V., (1970)
Kniga ob ėkonomičeskoj ėffektivnosti novoj techniki
Zubčaninov, V. V., (1961)