Cita APA (7a ed.)

James, C. (1971). A manual of assessment keys for plant diseases. American Phytopathological Society.

Cita Chicago Style (17a ed.)

James, Clive. A Manual of Assessment Keys for Plant Diseases. St. Paul, Minn.: American Phytopathological Society, 1971.

Cita MLA (9a ed.)

James, Clive. A Manual of Assessment Keys for Plant Diseases. American Phytopathological Society, 1971.