APA

Hughes J. P., . (1962). The science of language: an introduction to linguistics. New York: Random House.

Chicago

Hughes John Paul, . 1962. The science of language: an introduction to linguistics. New York: Random House.

Harvard

Hughes J. P., . (1962). The science of language: an introduction to linguistics. New York: Random House.

MLA

Hughes John Paul, . The science of language: an introduction to linguistics. New York: Random House. 1962.