APA استشهاد

Calvin, M. (1969). Chemical evolution: Molecular evolution towards the origin of living systems on the earth and elsewhere. Clarendon.

استشهاد بنمط شيكاغو

Calvin, Melvin. Chemical Evolution: Molecular Evolution Towards the Origin of Living Systems on the Earth and Elsewhere. Oxford: Clarendon, 1969.

MLA استشهاد

Calvin, Melvin. Chemical Evolution: Molecular Evolution Towards the Origin of Living Systems on the Earth and Elsewhere. Clarendon, 1969.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.