APA (7th ed.) Citation

Our World. (1991). Our world: Products for the environment : 1990-1991 (1ste editie.). Hereford: Our World.

Chicago Style (17th ed.) Citation

Our World. Our World: Products for the Environment : 1990-1991. 1ste editie. Hereford: Our World, 1991.

MLA (8th ed.) Citation

Our World. Our World: Products for the Environment : 1990-1991. 1ste editie. Hereford: Our World, 1991.

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