Columbia subject headings:
Birth control--Colombia--Bibliography.
Colombia--Economic conditions--1970---Bibliography.
Colombia--Population--Bibliography.
Colombia--Social conditions--1970---Bibliography.
Harvard subject headings:
Birth control--Colombia--Bibliography.
Colombia--Economic conditions--1970---Bibliography.
Colombia--Population--Bibliography.
Colombia--Social conditions--1970---Bibliography.
Colombia--Social conditions--Bibliography.
Princeton subject headings:
Birth control--Colombia--Bibliography.
Colombia--Economic conditions--1970---Bibliography.
Colombia--Population--Bibliography.
Colombia--Social conditions--1970---Bibliography.