Boulding, K. E. (1981). Ecodynamics: A new theory of societal evolution. Sage.
Cita Chicago (17th ed.)Boulding, Kenneth Ewart. Ecodynamics: A New Theory of Societal Evolution. Beverly Hills, Calif: Sage, 1981.
Cita MLA (9th ed.)Boulding, Kenneth Ewart. Ecodynamics: A New Theory of Societal Evolution. Sage, 1981.
Atenció: Aquestes cites poden no estar 100% correctes.