APA Citation

Keen, D. (1992). Developing vocabulary skills. Boston, MA: Heinle & Heinle.

Chicago Style Citation

Keen, Dennis. Developing Vocabulary Skills. Boston, MA: Heinle & Heinle, 1992.

MLA Citation

Keen, Dennis. Developing Vocabulary Skills. Boston, MA: Heinle & Heinle, 1992.

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