APA引文

Graber, S. E., Scheffel, U., Hodkinson, B., & McIntyre, P. A. (1971). Placental transport of vitamin B(12) in the pregnant rat.

Citação norma Chicago

Graber, Stanley E., Ursula Scheffel, Barbara Hodkinson, and Patricia A. McIntyre. Placental Transport of Vitamin B(12) in the Pregnant Rat. 1971.

MLA引文

Graber, Stanley E., Ursula Scheffel, Barbara Hodkinson, and Patricia A. McIntyre. Placental Transport of Vitamin B(12) in the Pregnant Rat. 1971.

警告：這些引文格式不一定是100％准確.