APA (7th ed.) Citation

Evtimov, I., Bergmann, F., & Zhelev, P. Genetic diversity of natural Silver fir populations in Bulgaria. Pensoft Publishers.

Chicago Style (17th ed.) Citation

Evtimov, Ivan, Fritz Bergmann, and Petar Zhelev. Genetic Diversity of Natural Silver Fir Populations in Bulgaria. Pensoft Publishers.

MLA (9th ed.) Citation

Evtimov, Ivan, et al. Genetic Diversity of Natural Silver Fir Populations in Bulgaria. Pensoft Publishers.