APA引文

Crespi, R. A. (2011). Geology and development of Aguacate mines, Costa Rica.

Citación estilo Chicago

Crespi, R. A. Geology and Development of Aguacate Mines, Costa Rica. 2011.

MLA引文

Crespi, R. A. Geology and Development of Aguacate Mines, Costa Rica. 2011.

警告：这些引文格式不一定是100％准确.