APA (7th ed.) Citation

Helfrich, P. (1989). Tales of the Oregon Cascades. Natural World Press.

Chicago Style (17th ed.) Citation

Helfrich, Prince. Tales of the Oregon Cascades. Hillsborough, Calif.: Natural World Press, 1989.

MLA (8th ed.) Citation

Helfrich, Prince. Tales of the Oregon Cascades. Natural World Press, 1989.

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