APA Citation

Koch, R. S., & Folse, K. S. (2000). Focus on grammar: An advanced course for reference and practice (2nd ed.). New York: Longman.

Chicago Style Citation

Koch, Rachel Spack, and Keith S. Folse. Focus On Grammar: An Advanced Course for Reference and Practice. 2nd ed. New York: Longman, 2000.

MLA Citation

Koch, Rachel Spack, and Keith S. Folse. Focus On Grammar: An Advanced Course for Reference and Practice. 2nd ed. New York: Longman, 2000.

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