Bryan, R. (1973). Much is taken, much remains: Canadian issues in environmental conservation. Duxbury Press.
Chicago-Zitierstil (17. Ausg.)Bryan, Rorke. Much Is Taken, Much Remains: Canadian Issues in Environmental Conservation. North Scituate, Mass: Duxbury Press, 1973.
MLA-Zitierstil (9. Ausg.)Bryan, Rorke. Much Is Taken, Much Remains: Canadian Issues in Environmental Conservation. Duxbury Press, 1973.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.