APA (7th ed.) Citation

Williams, H. (1948). The ancient volcanoes of Oregon. Oregon State System of Higher Education.

Chicago Style (17th ed.) Citation

Williams, Howel. The Ancient Volcanoes of Oregon. Eugene: Oregon State System of Higher Education, 1948.

MLA (9th ed.) Citation

Williams, Howel. The Ancient Volcanoes of Oregon. Oregon State System of Higher Education, 1948.

Warning: These citations may not always be 100% accurate.