Παραπομπή σε μορφή APA (7η εκδ.)

SpringerLink (Online service) & Qiao, Y. (2017). Maintenance Time and the Industry Development of Patents: Empirical Research with Evidence from China. Springer Singapore : Imprint: Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

SpringerLink (Online service) και Yongzhong Qiao. Maintenance Time and the Industry Development of Patents: Empirical Research with Evidence from China. Singapore: Springer Singapore : Imprint: Springer, 2017.

Παραπομπή σε μορφή MLA (8th εκδ.)

SpringerLink (Online service) και Yongzhong Qiao. Maintenance Time and the Industry Development of Patents: Empirical Research with Evidence from China. Springer Singapore : Imprint: Springer, 2017.