APA (7th ed.) Citation

Petrík, I., Madarás, J., Spišiak, J., Siman, P., & Bezák, V. Orthogneisses of the Ďumbier zone of the Nízke Tatry Mts: (Upper Hercynian unit).

Chicago Style (17th ed.) Citation

Petrík, Igor, J. Madarás, Ján Spišiak, P. Siman, and Vladimír Bezák. Orthogneisses of the Ďumbier Zone of the Nízke Tatry Mts: (Upper Hercynian Unit).

MLA (9th ed.) Citation

Petrík, Igor, et al. Orthogneisses of the Ďumbier Zone of the Nízke Tatry Mts: (Upper Hercynian Unit).