APA (7th ed.) Zitazioa

Robson, W. (1978). Essays and studies 1978. John Murray.

Chicago Style (17th ed.) Zitazioa

Robson, W.W. Essays and Studies 1978. London: John Murray, 1978.

MLA (9th ed.) Zitazioa

Robson, W.W. Essays and Studies 1978. John Murray, 1978.