Frodin, D. G. (2001). Guide to standard floras of the world: An annotated, geographically arranged systematic bibliography of the principal floras, enumerations, checklists, and chorological atlases of different areas (2nd ed.). Cambride University Press.
Cita Chicago (17th ed.)Frodin, D. G. Guide to Standard Floras of the World: An Annotated, Geographically Arranged Systematic Bibliography of the Principal Floras, Enumerations, Checklists, and Chorological Atlases of Different Areas. 2nd ed. Cambridge ; New York: Cambride University Press, 2001.
Cita MLA (9th ed.)Frodin, D. G. Guide to Standard Floras of the World: An Annotated, Geographically Arranged Systematic Bibliography of the Principal Floras, Enumerations, Checklists, and Chorological Atlases of Different Areas. 2nd ed. Cambride University Press, 2001.