APA

Welch T. L., . (1982). The Organization of American States and its documentation dissemination. Estados Unidos-US: OEA.

Chicago

Welch Thomas L, . 1982. The Organization of American States and its documentation dissemination. Estados Unidos-US: OEA.

Harvard

Welch T. L., . (1982). The Organization of American States and its documentation dissemination. Estados Unidos-US: OEA.

MLA

Welch Thomas L, . The Organization of American States and its documentation dissemination. Estados Unidos-US: OEA. 1982.