APA-viite (7. p.)

KIMBROUGH, V. F., & VAI, M. (1991). English on call level one. McGraw-hill.

Chicago-viite (17. p.)

KIMBROUGH, Victoria F., ja Marjorie VAI. English on Call Level One. New York: McGraw-hill, 1991.

MLA-viite (9. p.)

KIMBROUGH, Victoria F., ja Marjorie VAI. English on Call Level One. McGraw-hill, 1991.