Suguitan, L. S. (1956). A comparative study of Catharanthus roseus var. albus (Sweet) G. Don and its variant derivative.
Citazione stile Chigago Style (17a edizione)Suguitan, Lynda Santos. A Comparative Study of Catharanthus Roseus Var. Albus (Sweet) G. Don and Its Variant Derivative. 1956.
Citatione MLA (9a ed.)Suguitan, Lynda Santos. A Comparative Study of Catharanthus Roseus Var. Albus (Sweet) G. Don and Its Variant Derivative. 1956.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.