Cita APA (7a ed.)

Edmonds,jennifer M. and James A. Chweya. (1997). Black nightshades ( Solanum nigrum L.). International Plant Genetic Resources Institute.

Cita Chicago Style (17a ed.)

Edmonds,jennifer M. and James A. Chweya. Black Nightshades ( Solanum Nigrum L.). Roma - ITAL: International Plant Genetic Resources Institute, 1997.

Cita MLA (8a ed.)

Edmonds,jennifer M. and James A. Chweya. Black Nightshades ( Solanum Nigrum L.). International Plant Genetic Resources Institute, 1997.