APA

Onions C., Friedrichsen G., . (1966). The Oxfprd dictionary English etymology. Oxford: Clarendon Press.

Chicago

Onions C.T, Friedrichsen G.W.S, . 1966. The Oxfprd dictionary English etymology. Oxford: Clarendon Press.

Harvard

Onions C., Friedrichsen G., . (1966). The Oxfprd dictionary English etymology. Oxford: Clarendon Press.

MLA

Onions C.T, Friedrichsen G.W.S, . The Oxfprd dictionary English etymology. Oxford: Clarendon Press. 1966.