APA

Jones L., . (1997). New progress to first certificate: Teacher's book. Cambridge: Cambridge University Press.

Chicago

Jones Leo, . 1997. New progress to first certificate: Teacher's book. Cambridge: Cambridge University Press.

Harvard

Jones L., . (1997). New progress to first certificate: Teacher's book. Cambridge: Cambridge University Press.

MLA

Jones Leo, . New progress to first certificate: Teacher's book. Cambridge: Cambridge University Press. 1997.