APA (7th ed.) Citation

Kravchenko, A. P., & Moskalenko, S. M. (2013). Etiquette companionship.

Chicago Style (17th ed.) Citation

Kravchenko, A. P., and S. M. Moskalenko. Etiquette Companionship. 2013.

MLA (8th ed.) Citation

Kravchenko, A. P., and S. M. Moskalenko. Etiquette Companionship. 2013.

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