Gaya APA

[et.al.], Q, Y. (2011). Function and evolution of sterile sex organs in cryptically dioecious Petasites tricholobus (Asteraceae) . : Oxford University Press on behalf of the Annals of Botany Company.

Gaya MLA

[et.al.], Qian, Yu. "Function and evolution of sterile sex organs in cryptically dioecious Petasites tricholobus (Asteraceae)". : Oxford University Press on behalf of the Annals of Botany Company, 2011. e-journal.