Cita APA (7a ed.)

Greene, J. A., & Perkin, F. M. (1922). Patent, smokeless and semi-smokeless fuels. Sir Isaac Pitman & Sons.

Cita Chicago Style (17a ed.)

Greene, J. Arthur, y F. Mollwo Perkin. Patent, Smokeless and Semi-smokeless Fuels. London [etc.]: Sir Isaac Pitman & Sons, 1922.

Cita MLA (9a ed.)

Greene, J. Arthur, y F. Mollwo Perkin. Patent, Smokeless and Semi-smokeless Fuels. Sir Isaac Pitman & Sons, 1922.