APA (7th ed.) Citation

Kotrechko, O. O., & Veis, V. I. (2019). Military protective helmet.

Chicago Style (17th ed.) Citation

Kotrechko, O. O., and V. I. Veis. Military Protective Helmet. 2019.

MLA (8th ed.) Citation

Kotrechko, O. O., and V. I. Veis. Military Protective Helmet. 2019.

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