Cita APA (7a ed.)
Zomlefer, W. B. Guide to Flowering Plant Families. University of North Carolina.
Cita estilo Chicago (17a ed.)
Zomlefer, Wendy B. Guide to Flowering Plant Families. Chapel Hill, EUA: University of North Carolina.
Cita MLA (9a ed.)
Zomlefer, Wendy B. Guide to Flowering Plant Families. University of North Carolina.
Precaución: Estas citas no son 100% exactas.