Cita APA

Blaustein, B. D., Bockrath, B. C., & Friedman, S. (1981). New approaches in coal chemistry. American Chemical Society.

Citación estilo Chicago

Blaustein, Bernard D., Bradley C. Bockrath, and Sidney Friedman. New Approaches in Coal Chemistry. Washington, DC: American Chemical Society, 1981.

Cita MLA

Blaustein, Bernard D., et al. New Approaches in Coal Chemistry. American Chemical Society, 1981.