APA引文

Arnold & ARNOLD Klopper. (1969). Foetus and placenta. Blackwell scientific publications.

Chicago Edition Citation

Arnold and ARNOLD Klopper. Foetus and Placenta. Blackwell scientific publications, 1969.

MLA引文

Arnold and ARNOLD Klopper. Foetus and Placenta. Blackwell scientific publications, 1969.

警告：這些引文格式不一定是100％准確.