APA (7th ed.) Citation

Plünnecke, H. (1984). Natural orders.

Chicago Style (17th ed.) Citation

Plünnecke, Helmut. Natural Orders. Sankt Augustin, 1984.

MLA (9th ed.) Citation

Plünnecke, Helmut. Natural Orders. 1984.

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