APA引文

Troeh, F. R. (1995). Introductory soil science: Laboratory manual. Iowa: Iowa State Univ.

Trích dẫn kiểu Chicago

Troeh, Frederick R. Introductory Soil Science: Laboratory Manual. Iowa: Iowa State Univ, 1995.

MLA引文

Troeh, Frederick R. Introductory Soil Science: Laboratory Manual. Iowa: Iowa State Univ, 1995.

警告：这些引文格式不一定是100％准确.