APA

C. de Bravo B., . (1970). Technical english for business. México: McGraw Hill.

Chicago

C. de Bravo Bertha, . 1970. Technical english for business. México: McGraw Hill.

Harvard

C. de Bravo B., . (1970). Technical english for business. México: McGraw Hill.

MLA

C. de Bravo Bertha, . Technical english for business. México: McGraw Hill. 1970.