The podostemaceae of the New World.
APA Citation
Royen, P. van (Pieter van). (1951). The podostemaceae of the New World. Bergen op Zoom: P. Harte.
MLA Citation
Royen, P. van (Pieter van). The Podostemaceae of the New World. Bergen op Zoom: P. Harte, 1951.
Warning: These citations may not always be complete (especially for serials).