Style de citation APA (7e éd.)

Emerton, E. (1888). An Introduction to the study of the middle ages (375-814). S.n.

Style de citation Chicago (17e éd.)

Emerton, Ephraim. An Introduction to the Study of the Middle Ages (375-814). Boston: S.n, 1888.

Style de citation MLA (9e éd.)

Emerton, Ephraim. An Introduction to the Study of the Middle Ages (375-814). S.n, 1888.