APA Citation

Helmich, H. (1990). Directory of non - governmental development organizations in OECD member countries. París: OCDE.

Chicago Style Citation

Helmich, Henry. Directory of Non - Governmental Development Organizations in OECD Member Countries. París: OCDE, 1990.

MLA Citation

Helmich, Henry. Directory of Non - Governmental Development Organizations in OECD Member Countries. París: OCDE, 1990.

Warning: These citations may not always be 100% accurate.