Παραπομπή APA

(2001). The state of the environment in Denmark: NERI technical report No.409. Denmark: National Environmental research Institute.

Παραπομπή Chicago Style

The State of the Environment in Denmark: NERI Technical Report No.409. Denmark: National Environmental research Institute, 2001.

Παραπομπή MLA

The State of the Environment in Denmark: NERI Technical Report No.409. Denmark: National Environmental research Institute, 2001.

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