APA

Croizat Chaley L., .Euphorbiaceae novae vel criticae colombianae, III. : .

Chicago

Croizat Chaley León, .Euphorbiaceae novae vel criticae colombianae, III. : .

Harvard

Croizat Chaley L., .Euphorbiaceae novae vel criticae colombianae, III. : .

MLA

Croizat Chaley León, .: . .