Gaya APA

Yong-QiangWang, . et al (2011). A double-flowered variety of lesser periwinkle (Vinca minor fl. pl.) that has persisted in the wild for more than 160 years . : Oxford University Press on behalf of the Annals of Botany Company.

Gaya MLA

Yong-QiangWang, . et al. "A double-flowered variety of lesser periwinkle (Vinca minor fl. pl.) that has persisted in the wild for more than 160 years". : Oxford University Press on behalf of the Annals of Botany Company, 2011. e-journal.