APA引文

Toulmin, S., & Goodfield, J. (1961). Fabric of the heavens.

Chicago Edition Citation

Toulmin, Stephen, and June Goodfield. Fabric of the Heavens. 1961.

MLA引文

Toulmin, Stephen, and June Goodfield. Fabric of the Heavens. 1961.

警告：这些引文格式不一定是100％准确.