APA

Zhang S., . (1998). Factors affecting seed germination of verbena /Verbena x hybrida Voss/ seeds. Poznan: .

Chicago

Zhang Si-Yuan, . 1998. Factors affecting seed germination of verbena /Verbena x hybrida Voss/ seeds. Poznan: .

Harvard

Zhang S., . (1998). Factors affecting seed germination of verbena /Verbena x hybrida Voss/ seeds. Poznan: .

MLA

Zhang Si-Yuan, . Factors affecting seed germination of verbena /Verbena x hybrida Voss/ seeds. Poznan: . 1998.