Maggs, M. Grolier programmed English cource. Grolier Intrenational.
Chicago Style (17th ed.) CitationMaggs, Margaret. Grolier Programmed English Cource. Grolier Intrenational.
MLA (8th ed.) CitationMaggs, Margaret. Grolier Programmed English Cource. Grolier Intrenational.
Warning: These citations may not always be 100% accurate.