Cita APA (7a ed.)

Thomas, R. F., Blakemore, L. C., & Kinloch, D. I. (1981). Flow-diagram keys for "Soil taxonomy": D, Histosols and spodosols. Department of Scientific and Industrial Research.

Cita Chicago Style (17a ed.)

Thomas, R. F., L. C. Blakemore, y D. I. Kinloch. Flow-diagram Keys for "Soil Taxonomy": D, Histosols and Spodosols. [Lower Hutt](New Zealand): Department of Scientific and Industrial Research, 1981.

Cita MLA (9a ed.)

Thomas, R. F., et al. Flow-diagram Keys for "Soil Taxonomy": D, Histosols and Spodosols. Department of Scientific and Industrial Research, 1981.