APA (7th ed.) Citation

Markovinović, D., Cetl, V., & Kljajin, M. Preface. University North.

Chicago Style (17th ed.) Citation

Markovinović, Danko, Vlado Cetl, and Milan Kljajin. Preface. University North.

MLA (9th ed.) Citation

Markovinović, Danko, et al. Preface. University North.

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