Revell, D. (1990). New Dark Ages. Wesleyan University Press ; University Press of New England.
芝加哥风格引文Revell, Donald. New Dark Ages. [Middletown, Conn.] : Hanover, N.H.: Wesleyan University Press ; University Press of New England, 1990.
MLA引文Revell, Donald. New Dark Ages. Wesleyan University Press ; University Press of New England, 1990.
警告：这些引文格式不一定是100％准确.