Harrison, M., & Mark Harrison. (1995). Grammar Spectrum 2: English rules and practice,Pre-intermediate with answer. Oxford: Oxford University Press.
Styl cytowania ChicagoHarrison, Mark, i Mark Harrison. Grammar Spectrum 2: English Rules and Practice,Pre-intermediate With Answer. Oxford: Oxford University Press, 1995.
Styl cytowania MLAHarrison, Mark, i Mark Harrison. Grammar Spectrum 2: English Rules and Practice,Pre-intermediate With Answer. Oxford: Oxford University Press, 1995.
Uwaga: Te cytaty mogą odróżniać się od wytycznej twojego fakultetu..