Cita APA

Wills, I. D., & Wills, I. D. (1972). Evaluation of the produce flow sampler for sampling unshelled groundnuts, yellow maize and soft wheat. London: Tropical Products Institute.

Citación estilo Chicago

Wills, I. D., y I. D. Wills. Evaluation of the Produce Flow Sampler for Sampling Unshelled Groundnuts, Yellow Maize and Soft Wheat. London: Tropical Products Institute, 1972.

Cita MLA

Wills, I. D., y I. D. Wills. Evaluation of the Produce Flow Sampler for Sampling Unshelled Groundnuts, Yellow Maize and Soft Wheat. London: Tropical Products Institute, 1972.