एपीए उद्धरण

Harrison, M., & Mark Harrison. (1995). Grammar Spectrum 2: English rules and practice,Pre-intermediate with answer. Oxford: Oxford University Press.

शिकागो स्टाइल उद्धरण

Harrison, Mark, और Mark Harrison. Grammar Spectrum 2: English Rules and Practice,Pre-intermediate With Answer. Oxford: Oxford University Press, 1995.

एमएलए उद्धरण

Harrison, Mark, और Mark Harrison. Grammar Spectrum 2: English Rules and Practice,Pre-intermediate With Answer. Oxford: Oxford University Press, 1995.