The Black Death / : Philip Ziegler.

MLA

Ziegler, Philip. The Black Death / : Philip Ziegler. London: Collins, 1969.

APA

Ziegler, P. (1969). The Black Death / : Philip Ziegler. London: Collins.

Chicago

Ziegler, Philip The Black Death /: Philip Ziegler. London: Collins, 1969.