Essential business grammar and practice : elementary to pre-intermediate.

MLA

Duckworth, Michael. Essential Business Grammar and Practice : Elementary to Pre-intermediate. Oxford: University Press, .200.

APA

Duckworth, M. (.200). Essential business grammar and practice : elementary to pre-intermediate. Oxford: University Press.

Chicago

Duckworth, Michael, Essential Business Grammar and Practice: Elementary to Pre-Intermediate. Oxford: University Press, .200.