Dyfyniad APA

Levy, L. S., & Sampson, R. J. (1962). American economic development: Growth of the U. S. in the Western World. Allyn and Bacon.

Dyfyniad Arddull Chicago

Levy, Lester Samuel, and Roy J. Sampson. American Economic Development: Growth of the U. S. in the Western World. Boston: Allyn and Bacon, 1962.

Dyfyniad MLA

Levy, Lester Samuel, and Roy J. Sampson. American Economic Development: Growth of the U. S. in the Western World. Allyn and Bacon, 1962.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.