Long, J. R. d. M. BEAKTHROUGH II: A COURSE IN ENGLISH COMMUNICATION PRACTISE. Oxford University Press.
Chicago Style (17th ed.) CitationLong, J.C. Richards dan M.N. BEAKTHROUGH II: A COURSE IN ENGLISH COMMUNICATION PRACTISE. Oxford University Press.
MLA (8th ed.) CitationLong, J.C. Richards dan M.N. BEAKTHROUGH II: A COURSE IN ENGLISH COMMUNICATION PRACTISE. Oxford University Press.
Warning: These citations may not always be 100% accurate.