Παραπομπή APA

(2007). Environmental monitoring and reporting by enterprises. UN.

Παραπομπή Chicago Style

Environmental Monitoring and Reporting by Enterprises. UN, 2007.

Παραπομπή MLA

Environmental Monitoring and Reporting by Enterprises. UN, 2007.

Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.