Cita APA (7a ed.)

Gram, E., Weber, A., Dennis, R. W. G., & Ramsden, E. (1952). Plant diseases: In orchard, nursery and garden crops. McDonald.

Cita Chicago Style (17a ed.)

Gram, Ernst, Anna Weber, R. W. G. Dennis, y Evelyn Ramsden. Plant Diseases: In Orchard, Nursery and Garden Crops. London: McDonald, 1952.

Cita MLA (8a ed.)

Gram, Ernst, et al. Plant Diseases: In Orchard, Nursery and Garden Crops. McDonald, 1952.