Cita APA

Juan Mainar, R., Ruiz Alares, M. C., Andrés Gimeno, J. M., & Estévez, M. (1990). Production of humic acids from lignites and subbituminous coals by alkaline-air oxidation.

Citación estilo Chicago

Juan Mainar, Roberto, M. Carmen Ruiz Alares, José Manuel Andrés Gimeno, y Mercedes Estévez. Production of Humic Acids From Lignites and Subbituminous Coals By Alkaline-air Oxidation. 1990.

Cita MLA

Juan Mainar, Roberto, M. Carmen Ruiz Alares, José Manuel Andrés Gimeno, y Mercedes Estévez. Production of Humic Acids From Lignites and Subbituminous Coals By Alkaline-air Oxidation. 1990.