APA استشهاد

C.R Austin & R.V Short. (1990). Embryonic and fetal development (Second.). Australia.

استشهاد بنمط شيكاغو

C.R Austin و R.V Short. Embryonic and Fetal Development. Second. Australia, 1990.

MLA استشهاد

C.R Austin و R.V Short. Embryonic and Fetal Development. Second. Australia, 1990.