APA

(1989). Development co-operation in the 1990s. Paris: OECD.

Chicago

1989. Development co-operation in the 1990s. Paris: OECD.

Harvard

(1989). Development co-operation in the 1990s. Paris: OECD.

MLA

Development co-operation in the 1990s. Paris: OECD. 1989.