APA

(1981). Directory of non-governmental organisations in OECD member countries active in development co-operation. Paris: OECD.

Chicago

1981. Directory of non-governmental organisations in OECD member countries active in development co-operation. Paris: OECD.

Harvard

(1981). Directory of non-governmental organisations in OECD member countries active in development co-operation. Paris: OECD.

MLA

Directory of non-governmental organisations in OECD member countries active in development co-operation. Paris: OECD. 1981.