APA Citation

Downing, & Locke. (1992). A University course in English grammar. New York: Phoenix ELT.

Chicago Style Citation

Downing, and Locke. A University Course in English Grammar. New York: Phoenix ELT, 1992.

MLA Citation

Downing, and Locke. A University Course in English Grammar. New York: Phoenix ELT, 1992.

Warning: These citations may not always be 100% accurate.