APA引文

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引文

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

警告：這些引文格式不一定是100％准確.