APA引文

Shope, I. (1948). Old Oregon Trail. American Pioneer Trails Association.

Chicago Style (17th ed.) Citation

Shope, Irvin. Old Oregon Trail. [S.l.]: American Pioneer Trails Association, 1948.

MLA引文

Shope, Irvin. Old Oregon Trail. American Pioneer Trails Association, 1948.

警告：這些引文格式不一定是100％准確.