APA

Frodin, . (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. Cambridge: Cambride University Press.

Chicago

Frodin, . 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. Cambridge: Cambride University Press.

Harvard

Frodin, . (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. Cambridge: Cambride University Press.

MLA

Frodin, . 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. Cambridge: Cambride University Press. 2001.