APA

Lloyd D. J., Warfel H. R., . (19571956). American English in its cultural setting. New York: Knopf.

Chicago

Lloyd Donald J, Warfel Harry R, . 19571956. American English in its cultural setting. New York: Knopf.

Harvard

Lloyd D. J., Warfel H. R., . (19571956). American English in its cultural setting. New York: Knopf.

MLA

Lloyd Donald J, Warfel Harry R, . American English in its cultural setting. New York: Knopf. 19571956.