APA

E. Garst T., . (1971). The written word. México: McGraw Hill.

Chicago

E. Garst Thomas, . 1971. The written word. México: McGraw Hill.

Harvard

E. Garst T., . (1971). The written word. México: McGraw Hill.

MLA

E. Garst Thomas, . The written word. México: McGraw Hill. 1971.