APA Citatie

Koch, R. S., & Rachel Spack Koch; Keith S Folse. (2006). Focus on grammar: An integrated skills approach. White Plains: Longman, cop.

Chicago Style citaat

Koch, Rachel Spack, en Rachel Spack Koch; Keith S Folse. Focus On Grammar: An Integrated Skills Approach. White Plains: Longman, cop, 2006.

MLA citatie

Koch, Rachel Spack, en Rachel Spack Koch; Keith S Folse. Focus On Grammar: An Integrated Skills Approach. White Plains: Longman, cop, 2006.

Let op: Deze citaties zijn niet altijd 100% accuraat.