APA引文

Sheller, W. D. (1991). Welcome to English: Work Book 4/ Willard D.Shelleer; Susan C.Bayley. Indonesia : English Language Services Inc..

Chicago Style (17th ed.) Citation

Sheller, Willard D. Welcome to English: Work Book 4/ Willard D.Shelleer; Susan C.Bayley. Indonesia : English Language Services Inc., 1991.

MLA引文

Sheller, Willard D. Welcome to English: Work Book 4/ Willard D.Shelleer; Susan C.Bayley. Indonesia : English Language Services Inc., 1991.