Cita APA (7th ed.)
Bluma, L., Farrenkopf, M., & Meyer, T. (2021). Boom - crisis - heritage: King coal and the energy revolutions after 1945. Walter de Gruyter GmbH.
Cita Chicago (17th ed.)
Bluma, Lars, Michael Farrenkopf, i Torsten Meyer. Boom - Crisis - Heritage: King Coal and the Energy Revolutions After 1945. Berlin: Walter de Gruyter GmbH, 2021.
Cita MLA (9th ed.)
Bluma, Lars, et al. Boom - Crisis - Heritage: King Coal and the Energy Revolutions After 1945. Walter de Gruyter GmbH, 2021.
Atenció: Aquestes cites poden no estar 100% correctes.