Dyfyniad APA

Williams, H. L., & Williams, O. K. (1966). Great houses of America. Putnam.

Dyfyniad Arddull Chicago

Williams, Henry Lionel, and Ottalie K. Williams. Great Houses of America. New York: Putnam, 1966.

Dyfyniad MLA

Williams, Henry Lionel, and Ottalie K. Williams. Great Houses of America. Putnam, 1966.

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