APA (7th ed.) Citation

Bella, P., Eliáš, M., Straka, Š., & Grofčíková, H. (1997). Show caves in Slovakia. Knižné centrum.

Chicago Style (17th ed.) Citation

Bella, Pavel, Miroslav Eliáš, Štefan Straka, and Helena Grofčíková. Show Caves in Slovakia. Žilina: Knižné centrum, 1997.

MLA (9th ed.) Citation

Bella, Pavel, et al. Show Caves in Slovakia. Knižné centrum, 1997.