APA (7th ed.) Citation

Heller, Á. (1982). A theory of history. Routledge & Kegan Paul.

Chicago Style (17th ed.) Citation

Heller, Ágnes. A Theory of History. London ; Boston: Routledge & Kegan Paul, 1982.

MLA (9th ed.) Citation

Heller, Ágnes. A Theory of History. Routledge & Kegan Paul, 1982.

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