Asian Productivity Organization. (2008). Eco-products directory 2008: For sustainable production and consumption (4th ed.). APO.
Chicago-Zitierstil (17. Ausg.)Asian Productivity Organization. Eco-products Directory 2008: For Sustainable Production and Consumption. 4th ed. Tokyo, Japan: APO, 2008.
MLA-Zitierstil (9. Ausg.)Asian Productivity Organization. Eco-products Directory 2008: For Sustainable Production and Consumption. 4th ed. APO, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.