APA

Henderson T. F., . (1912). The ballad in literature. Cambridge: Cambridge University Press.

Chicago

Henderson Thomas Finlayson, . 1912. The ballad in literature. Cambridge: Cambridge University Press.

Harvard

Henderson T. F., . (1912). The ballad in literature. Cambridge: Cambridge University Press.

MLA

Henderson Thomas Finlayson, . The ballad in literature. Cambridge: Cambridge University Press. 1912.