APA-referens

Sraffa, P. D. (1957). Works and correspondence of David Ricardo, Vol.2.

Chicago-stil citat

Sraffa, Piero; Dobb. Works and Correspondence of David Ricardo, Vol.2. Cambridge University press, Cambridge, 1957.

MLA-referens

Sraffa, Piero; Dobb. Works and Correspondence of David Ricardo, Vol.2. 1957.