APA (7th ed.) Citation

QIAN, G., FANG, A., & SHEN, Y. (2004). Soft core and pearl cultivation method using the same (7.).

Chicago Style (17th ed.) Citation

QIAN, GUOYING, ALU FANG, and YUN SHEN. Soft Core and Pearl Cultivation Method Using the Same. 7. 2004.

MLA (9th ed.) Citation

QIAN, GUOYING, et al. Soft Core and Pearl Cultivation Method Using the Same. 7. 2004.