Titus, J. R., & Van Druff, L. W. (1981). Response of the common loon to recreational pressure in the boundary waters canoe area, Northeastern Minnesota. Wildlife Soc.
Chicago-Zitierstil (17. Ausg.)Titus, James R., und Larry W. Van Druff. Response of the Common Loon to Recreational Pressure in the Boundary Waters Canoe Area, Northeastern Minnesota. Washington, DC: Wildlife Soc, 1981.
MLA-Zitierstil (9. Ausg.)Titus, James R., und Larry W. Van Druff. Response of the Common Loon to Recreational Pressure in the Boundary Waters Canoe Area, Northeastern Minnesota. Wildlife Soc, 1981.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.