APA Style

AZAR, B, S., AZAR, D, A. (1999). Fundamentals of English grammar (workbook) (Ed.2). New Jersey: Prentice Hall Regents.

MLA Style

AZAR, Betty, Schrampfer., AZAR, Donald, A.. "Fundamentals of English grammar (workbook)". Ed.2 New Jersey: Prentice Hall Regents, 1999. E-Book.