APA引文

Sims, D. G. (1987). Doppler studies in the growth retarded fetus.

Citação norma Chicago

Sims, D G. Doppler Studies in the Growth Retarded Fetus. 1987.

MLA引文

Sims, D G. Doppler Studies in the Growth Retarded Fetus. 1987.

警告：這些引文格式不一定是100％准確.