APA

Allens R. E., . (1988). The Oxford dictionary of current English. Oxford: Oxford University Press.

Chicago

Allens R E, . 1988. The Oxford dictionary of current English. Oxford: Oxford University Press.

Harvard

Allens R. E., . (1988). The Oxford dictionary of current English. Oxford: Oxford University Press.

MLA

Allens R E, . The Oxford dictionary of current English. Oxford: Oxford University Press. 1988.