APA (7th ed.) Citation

Spearing, A. (2020). Green Coal Mining Techniques 2020. MDPI - Multidisciplinary Digital Publishing Institute.

Chicago Style (17th ed.) Citation

Spearing, A.J.S. Green Coal Mining Techniques 2020. Basel, Switzerland: MDPI - Multidisciplinary Digital Publishing Institute, 2020.

MLA (9th ed.) Citation

Spearing, A.J.S. Green Coal Mining Techniques 2020. MDPI - Multidisciplinary Digital Publishing Institute, 2020.

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