APA

Godfrey H. F., . (1968). Your El Salvador guide. New York: Funk and Wagnalls.

Chicago

Godfrey Henry F, . 1968. Your El Salvador guide. New York: Funk and Wagnalls.

Harvard

Godfrey H. F., . (1968). Your El Salvador guide. New York: Funk and Wagnalls.

MLA

Godfrey Henry F, . Your El Salvador guide. New York: Funk and Wagnalls. 1968.