Citazione Stile APA (7a Edizione)

Aubrey, H. G., & Darmstadter, J. (1961). Introduct: Economic challenge and response. National Planning Association.

Citazione stile Chigago Style (17a edizione)

Aubrey, Henry G., e Joel Darmstadter. Introduct: Economic Challenge and Response. Washington: National Planning Association, 1961.

Citatione MLA (9a ed.)

Aubrey, Henry G., e Joel Darmstadter. Introduct: Economic Challenge and Response. National Planning Association, 1961.