APA引文

Zaleski, H. M., & Hacker, R. R. (1993). Variables related to the progress of parturition and probability of stillbirth in swine.

Citação norma Chicago

Zaleski, Halina M., and Roger R. Hacker. Variables Related to the Progress of Parturition and Probability of Stillbirth in Swine. 1993.

MLA引文

Zaleski, Halina M., and Roger R. Hacker. Variables Related to the Progress of Parturition and Probability of Stillbirth in Swine. 1993.

警告：這些引文格式不一定是100％准確.