APA (7th ed.) Citation

Fabricius, J. C., Gram, E., & Ravn, M. K. (1926). Attempt at a dissertation on the diseases of plants. American Phytopathological Society.

Chicago Style (17th ed.) Citation

Fabricius, Johann Christian, Ernst Gram, and Margaret Kølpin Ravn. Attempt at a Dissertation on the Diseases of Plants. Lancaster, Pa.: American Phytopathological Society, 1926.

MLA (9th ed.) Citation

Fabricius, Johann Christian, et al. Attempt at a Dissertation on the Diseases of Plants. American Phytopathological Society, 1926.