Soars, J. (1991). Headway Pre-intermediate: Teacher's book. Oxford: Oxford University Press.
Čikaški stil citiranjaSoars, John. Headway Pre-intermediate: Teacher's Book. Oxford: Oxford University Press, 1991.
MLA način citiranjaSoars, John. Headway Pre-intermediate: Teacher's Book. Oxford: Oxford University Press, 1991.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.