Cita APA

Dray,W.H, & Dusen, W. V. D. (1999). Principles of history. OUP.

Chicago Edition Citation

Dray,W.H, i W.J. Van Der Dusen. Principles of History. Delhi: OUP, 1999.

Cita MLA

Dray,W.H, i W.J. Van Der Dusen. Principles of History. OUP, 1999.