Dyfyniad APA

Silbey, J. H. (1970). National development and sectional crisis, 1815-1860. Random House.

Dyfyniad Arddull Chicago

Silbey, Joel H. National Development and Sectional Crisis, 1815-1860. New York: Random House, 1970.

Dyfyniad MLA

Silbey, Joel H. National Development and Sectional Crisis, 1815-1860. Random House, 1970.

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