APA (7th ed.) Citation

Bajan, Ľ., Buleca, J., & Ďuran, A. Variations of foramen ovale patens in some breeds of pigs.

Chicago Style (17th ed.) Citation

Bajan, Ľudovít, J. Buleca, and Augustín Ďuran. Variations of Foramen Ovale Patens in Some Breeds of Pigs.

MLA (9th ed.) Citation

Bajan, Ľudovít, et al. Variations of Foramen Ovale Patens in Some Breeds of Pigs.

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