Gaya APA

Schoenberg, Irene E., Maurer, Jay. (2001). Focus on gramar: an introductory course for reference and practice . : Longman.

Gaya Chicago

Schoenberg, Irene E., Maurer, Jay. Focus on gramar: an introductory course for reference and practice. : Longman, 2001. Text.

Gaya MLA

Schoenberg, Irene E., Maurer, Jay. Focus on gramar: an introductory course for reference and practice. : Longman, 2001. Text.

Gaya Turabian

Schoenberg, Irene E., Maurer, Jay. Focus on gramar: an introductory course for reference and practice. : Longman, 2001. Print.