APA

Mansfield E., Mansfield E., .The economics of technical change. s.l: Edward Elgar.

Chicago

Mansfield Edwin, Mansfield Elizabeth, .The economics of technical change. s.l: Edward Elgar.

Harvard

Mansfield E., Mansfield E., .The economics of technical change. s.l: Edward Elgar.

MLA

Mansfield Edwin, Mansfield Elizabeth, .s.l: Edward Elgar. .