APA

Norton A. A., Knutsen E. W., . (1978). The language of the merchant marine in English. New York: Regents Pub. Co.

Chicago

Norton Aloysius A, Knutsen Edward W, . 1978. The language of the merchant marine in English. New York: Regents Pub. Co.

Harvard

Norton A. A., Knutsen E. W., . (1978). The language of the merchant marine in English. New York: Regents Pub. Co.

MLA

Norton Aloysius A, Knutsen Edward W, . The language of the merchant marine in English. New York: Regents Pub. Co. 1978.