APA引文

Meulen, J. v. d. (1989). Time and nature of the signal for maternal recognition of pregnancy in the pig.

Chicago Style (17th ed.) Citation

Meulen, Jan van der. Time and Nature of the Signal for Maternal Recognition of Pregnancy in the Pig. 1989.

MLA引文

Meulen, Jan van der. Time and Nature of the Signal for Maternal Recognition of Pregnancy in the Pig. 1989.

警告：这些引文格式不一定是100％准确.