University of Oxford. Institute of Statistics. (1938). Oxford economic papers. Clarendon Press.
Lua i Stíl Chicago (17ú heag.)University of Oxford. Institute of Statistics. Oxford Economic Papers. Oxford: Clarendon Press, 1938.
Lua MLA (9ú heag.)University of Oxford. Institute of Statistics. Oxford Economic Papers. Clarendon Press, 1938.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.