APA (7th ed.) Citation

Stupak, I. A., & Petrova, N. N. (2011). Innovation Activity in the Donbass Soal Industry in 1966 – 1970.

Chicago Style (17th ed.) Citation

Stupak, I. A., and N. N. Petrova. Innovation Activity in the Donbass Soal Industry in 1966 – 1970. 2011.

MLA (8th ed.) Citation

Stupak, I. A., and N. N. Petrova. Innovation Activity in the Donbass Soal Industry in 1966 – 1970. 2011.

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