Citazione Stile APA (7a Edizione)

Boulding, K. E., Glahe, F. R., & Singell, L. D. (1971). Collected papers. Colorado Associated University Press.

Citazione stile Chigago Style (17a edizione)

Boulding, Kenneth E., Fred R. Glahe, e L. D. Singell. Collected Papers. Boulder: Colorado Associated University Press, 1971.

Citatione MLA (8a ed.)

Boulding, Kenneth E., et al. Collected Papers. Colorado Associated University Press, 1971.