Sharma,O P. (1993). Plant Taxonomy. Tata McGraw-Hill.
Cita Chicago Style (17a ed.)Sharma,O P. Plant Taxonomy. New Delhi: Tata McGraw-Hill, 1993.
Cita MLA (9a ed.)Sharma,O P. Plant Taxonomy. Tata McGraw-Hill, 1993.
Precaución: Estas citas no son 100% exactas.