Παραπομπή APA

Koning,De H W. (1987). Setting environmental standards: Guidelines for decision making. B R Publishing.

Παραπομπή Chicago Style

Koning,De H W. Setting Environmental Standards: Guidelines for Decision Making. New Delhi: B R Publishing, 1987.

Παραπομπή MLA

Koning,De H W. Setting Environmental Standards: Guidelines for Decision Making. B R Publishing, 1987.