APA (7th ed.) Citation
Štefko, R., Dorčák, P., & Pollák, F. Virtual Social Networks and Their Utilization for Promotion.
Chicago Style (17th ed.) Citation
Štefko, Róbert, Peter Dorčák, and František Pollák. Virtual Social Networks and Their Utilization for Promotion.
MLA (9th ed.) Citation
Štefko, Róbert, et al. Virtual Social Networks and Their Utilization for Promotion.
Warning: These citations may not always be 100% accurate.