APA

Lang S. S., Patt R. B., . (1994). You don't have to suffer: a complete guide to relieving cancer pain for patients and their families. New York: Oxford University Press.

Chicago

Lang Susan S, Patt Richard B, . 1994. You don't have to suffer: a complete guide to relieving cancer pain for patients and their families. New York: Oxford University Press.

Harvard

Lang S. S., Patt R. B., . (1994). You don't have to suffer: a complete guide to relieving cancer pain for patients and their families. New York: Oxford University Press.

MLA

Lang Susan S, Patt Richard B, . You don't have to suffer: a complete guide to relieving cancer pain for patients and their families. New York: Oxford University Press. 1994.