Citazione Stile APA (7a Edizione)

Boulding, K. E., Boulding, E., & Burgess, G. M. (1980). The social system of the planet eart. Addison-Wesley Publishing Company.

Citazione stile Chigago Style (17a edizione)

Boulding, Kenneth Ewart, Elise Boulding, e Guy M. Burgess. The Social System of the Planet Eart. Reading, Massachusetts [i pozostałe]: Addison-Wesley Publishing Company, 1980.

Citatione MLA (9a ed.)

Boulding, Kenneth Ewart, et al. The Social System of the Planet Eart. Addison-Wesley Publishing Company, 1980.