Cita APA (7a ed.)

Ruhland, W., Ashby, E., Bonner, J., Geiger Huber, M., James, W. O., Lang, A., . . . Stalfelt, M. G. (1955). Encyclopedia of plant physiology. Springer-Verlag.

Cita Chicago Style (17a ed.)

Ruhland, W., E. Ashby, James Bonner, M. Geiger Huber, W. O. James, A. Lang, D. Müller, y M. G. Stalfelt. Encyclopedia of Plant Physiology. Berlin: Springer-Verlag, 1955.

Cita MLA (8a ed.)

Ruhland, W., et al. Encyclopedia of Plant Physiology. Springer-Verlag, 1955.