APA Style

Schoenberg, I, E., Maurer, J. (2006, 200). Focus on GRAMMAR : an integrated skills approach (Second Edition). White Plains: Pearson Education.

MLA Style

Schoenberg, Irene, E.., Maurer, Jay. "Focus on GRAMMAR : an integrated skills approach". Second Edition White Plains: Pearson Education, 2006, 200. Text.