APA引文

Stephen Marshak. (2019). Earth: Portrait of a Planet (Sixth.). W.W. Norton.

Chicago Edition Citation

Stephen Marshak. Earth: Portrait of a Planet. Sixth. NewYork: W.W. Norton, 2019.

MLA引文

Stephen Marshak. Earth: Portrait of a Planet. Sixth. W.W. Norton, 2019.

警告：这些引文格式不一定是100％准确.