APA (7th ed.) Citation

Romantsov, M. G., Melnikova, I. Y., & Sarvilina, I. V. Frequently Ill Child Syndrome. LLC "Publishing House OKI".

Chicago Style (17th ed.) Citation

Romantsov, M. G., I. Yu Melnikova, and I. V. Sarvilina. Frequently Ill Child Syndrome. LLC "Publishing House OKI".

MLA (9th ed.) Citation

Romantsov, M. G., et al. Frequently Ill Child Syndrome. LLC "Publishing House OKI".