APA引文

Merck. (1999). Chemicals reagents. Darmstadt, Germany: Merck.

Trích dẫn kiểu Chicago

Merck. Chemicals Reagents. Darmstadt, Germany: Merck, 1999.

MLA引文

Merck. Chemicals Reagents. Darmstadt, Germany: Merck, 1999.

警告：这些引文格式不一定是100％准确.