Smith, D. M. N. (1980). Taxonomic studies in Pachycarpus (Ascelpiadaceae) in Southern Africa.
Chicagoスタイル(17版)引用形式Smith, Dianne Mary Noelle. Taxonomic Studies in Pachycarpus (Ascelpiadaceae) in Southern Africa. 1980.
MLA(8版)引用形式Smith, Dianne Mary Noelle. Taxonomic Studies in Pachycarpus (Ascelpiadaceae) in Southern Africa. 1980.
警告: この引用は必ずしも正確ではありません.