APA

Croizat Chaley L., .One old and two species of Phyllanthus from Northwestern south America. : .

Chicago

Croizat Chaley León, .One old and two species of Phyllanthus from Northwestern south America. : .

Harvard

Croizat Chaley L., .One old and two species of Phyllanthus from Northwestern south America. : .

MLA

Croizat Chaley León, .: . .