APA

Kirkbride J. H., .Raritebe, an overlooked genus of the Rubiaceae. : .

Chicago

Kirkbride Joseph H, .Raritebe, an overlooked genus of the Rubiaceae. : .

Harvard

Kirkbride J. H., .Raritebe, an overlooked genus of the Rubiaceae. : .

MLA

Kirkbride Joseph H, .: . .