APA (7th ed.) Citation

Anthracite Institute. The formation and characteristics of Pennsylvania anthracite. The Anthracite Institute.

Chicago Style (17th ed.) Citation

Anthracite Institute. The Formation and Characteristics of Pennsylvania Anthracite. New York: The Anthracite Institute.

MLA (8th ed.) Citation

Anthracite Institute. The Formation and Characteristics of Pennsylvania Anthracite. The Anthracite Institute.

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