APA

Baumol W. J., Blackman S. A. B. & Wolff E. N. (1989). Productivity and American leadership: the long view. Cambridge, Ma: MIT Press.

Chicago

Baumol William J, Blackman Sue Anne Batey and Wolff Edward N. 1989. Productivity and American leadership: the long view. Cambridge, Ma: MIT Press.

Harvard

Baumol W. J., Blackman S. A. B. and Wolff E. N. (1989). Productivity and American leadership: the long view. Cambridge, Ma: MIT Press.

MLA

Baumol William J, Blackman Sue Anne Batey and Wolff Edward N. Productivity and American leadership: the long view. Cambridge, Ma: MIT Press. 1989.