Becker, R., & Burmeister, E. (1991). Growth theory. E. Elgar.
Cita Chicago (17th ed.)Becker, Robert, i E. Burmeister. Growth Theory. Aldershot, Hants, Eng: E. Elgar, 1991.
Cita MLA (9th ed.)Becker, Robert, i E. Burmeister. Growth Theory. E. Elgar, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.