Gaya APA

Schoenberg, Irene E., Maurer, Jay. (2002). Focus on Grammar : an Introductory course for reference and practice . New York: Addison Wesley Longman, Inc.

Gaya Chicago

Schoenberg, Irene E., Maurer, Jay. Focus on Grammar : an Introductory course for reference and practice. New York: Addison Wesley Longman, Inc, 2002. Text.

Gaya MLA

Schoenberg, Irene E., Maurer, Jay. Focus on Grammar : an Introductory course for reference and practice. New York: Addison Wesley Longman, Inc, 2002. Text.

Gaya Turabian

Schoenberg, Irene E., Maurer, Jay. Focus on Grammar : an Introductory course for reference and practice. New York: Addison Wesley Longman, Inc, 2002. Print.