APA引文

(1971). The economics of technological change: Selected readings. Harmondsworth: Penguin.

Trích dẫn kiểu Chicago

The Economics of Technological Change: Selected Readings. Harmondsworth: Penguin, 1971.

MLA引文

The Economics of Technological Change: Selected Readings. Harmondsworth: Penguin, 1971.

警告：这些引文格式不一定是100％准确.