(1973). An anthology of selected readings for the National Conference on Managing the Environment. [Washinghton, DC]: [s.n.].
Παραπομπή Chicago StyleAn Anthology of Selected Readings for the National Conference On Managing the Environment. [Washinghton, DC]: [s.n.], 1973.
Παραπομπή MLAAn Anthology of Selected Readings for the National Conference On Managing the Environment. [Washinghton, DC]: [s.n.], 1973.
Πρόσοχή: Οι παραπομπές μπορεί να μην είναι 100% ακριβείς.