APA引文

Pumpelly, R., & Willis, B. (1886). Report on the mining industries of the United States (exclusive of the precious metals): With special investigation into the iron resources of the republic and into the Cretaceous coals of the Northwest. Govt.Print. Off..

Chicago Style (17th ed.) Citation

Pumpelly, Raphael, and Bailey Willis. Report on the Mining Industries of the United States (exclusive of the Precious Metals): With Special Investigation into the Iron Resources of the Republic and into the Cretaceous Coals of the Northwest. Washington: Govt.Print. Off., 1886.

MLA引文

Pumpelly, Raphael, and Bailey Willis. Report on the Mining Industries of the United States (exclusive of the Precious Metals): With Special Investigation into the Iron Resources of the Republic and into the Cretaceous Coals of the Northwest. Govt.Print. Off., 1886.

警告：這些引文格式不一定是100％准確.