APA (7th ed.) Citation

Tuchman, B. W. (1979). A distant mirror : the calamitous 14th century / (by) Barbara W. Tuchman: The calamitous 14th century. Macmillan.

Chicago Style (17th ed.) Citation

Tuchman, Barbara W. A Distant Mirror : The Calamitous 14th Century / (by) Barbara W. Tuchman: The Calamitous 14th Century. London (etc.): Macmillan, 1979.

MLA (9th ed.) Citation

Tuchman, Barbara W. A Distant Mirror : The Calamitous 14th Century / (by) Barbara W. Tuchman: The Calamitous 14th Century. Macmillan, 1979.

Warning: These citations may not always be 100% accurate.