APA (7th ed.) Citation

Perehrym, M. M., & Nakopiuk, I. P. (2005). Fritillaria ruthenica Wikstr. in Doneck upland.

Chicago Style (17th ed.) Citation

Perehrym, M. M., and I. P. Nakopiuk. Fritillaria Ruthenica Wikstr. in Doneck Upland. 2005.

MLA (8th ed.) Citation

Perehrym, M. M., and I. P. Nakopiuk. Fritillaria Ruthenica Wikstr. in Doneck Upland. 2005.

Warning: These citations may not always be 100% accurate.