Huaman, Z. (1991). Descriptions for sweet potato. International Board for Plant Genetic Resources.
Cita Chicago (17th ed.)Huaman, Z. Descriptions for Sweet Potato. International Board for Plant Genetic Resources, 1991.
Cita MLA (9th ed.)Huaman, Z. Descriptions for Sweet Potato. International Board for Plant Genetic Resources, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.