Bortleson, G. C., Wilson, R. T., & Foxworthy, B. L. (1977). Water-quality effects on Baker Lake of recent volcanic activity at Mount Baker, Washington. US Gov. Print. Off.
Chicago-Zitierstil (17. Ausg.)Bortleson, Gilbert Carl, R. T. Wilson, und B. L. Foxworthy. Water-quality Effects on Baker Lake of Recent Volcanic Activity at Mount Baker, Washington. Washington: US Gov. Print. Off, 1977.
MLA-Zitierstil (9. Ausg.)Bortleson, Gilbert Carl, et al. Water-quality Effects on Baker Lake of Recent Volcanic Activity at Mount Baker, Washington. US Gov. Print. Off, 1977.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.