APA (7e ed.) Bronvermelding

Sweet, W. (2004). The Philosophy of history: A re examination. Ashgate.

Chicago (17e ed.) Bronvermelding

Sweet, William. The Philosophy of History: A Re Examination. Hampshie: Ashgate, 2004.

MLA (9e ed.) Bronvermelding

Sweet, William. The Philosophy of History: A Re Examination. Ashgate, 2004.