Bailey, L.H. The Cultivated Brassicas. Gentes Herbarum; Occasional Papers on the Kinds of Plants. 1922-12-18, 1 (2): 86-90 [2022-11-13]. (原始内容存档于2022-11-13).
Bailey, L.H. The Cultivated Brassicas. Gentes Herbarum; Occasional Papers on the Kinds of Plants. 1922-12-18, 1 (2): 86-90 [2022-11-13]. (原始内容存档于2022-11-13).