APA

Delprete P. G., .Studies in the pendulous-flowered species of Rustia (<Rubiaceae, Condomineeae>), including a new species, Rustia schunkeana. : .

Chicago

Delprete Piero G, .Studies in the pendulous-flowered species of Rustia (<Rubiaceae, Condomineeae>), including a new species, Rustia schunkeana. : .

Harvard

Delprete P. G., .Studies in the pendulous-flowered species of Rustia (<Rubiaceae, Condomineeae>), including a new species, Rustia schunkeana. : .

MLA

Delprete Piero G, .: . .