APA (7th ed.) Citation

O'Hara, E. V. (1939). Pioneer Catholic history of Oregon (Centennial ed.). St. Anthony Guild Press.

Chicago Style (17th ed.) Citation

O'Hara, Edwin V. Pioneer Catholic History of Oregon. Centennial ed. Paterson, NJ: St. Anthony Guild Press, 1939.

MLA (9th ed.) Citation

O'Hara, Edwin V. Pioneer Catholic History of Oregon. Centennial ed. St. Anthony Guild Press, 1939.