Dyfyniad APA

Clough, S. B., & Marbury, T. F. (1968). Economic basis of American Civilization. Thomas Y Growell Co.

Dyfyniad Arddull Chicago

Clough, Shepard B., and Theodore F. Marbury. Economic Basis of American Civilization. Newyork: Thomas Y Growell Co, 1968.

Dyfyniad MLA

Clough, Shepard B., and Theodore F. Marbury. Economic Basis of American Civilization. Thomas Y Growell Co, 1968.

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