Cita APA (7th ed.)

Lawrence & George H. M. (1951). Taxonomy of vascular plants. Oxford & IBH Publishing Co. Pvt. Ltd..

Cita Chicago (17th ed.)

Lawrence i George H. M. Taxonomy of Vascular Plants. New Delhi: Oxford & IBH Publishing Co. Pvt. Ltd., 1951.

Cita MLA (9th ed.)

Lawrence i George H. M. Taxonomy of Vascular Plants. Oxford & IBH Publishing Co. Pvt. Ltd., 1951.