Cita APA (7th ed.)

David James Press. (1987). Map & guide to Puerto Rico & the U.S. Virgin Islands (1988 Edition.). David James Press.

Cita Chicago (17th ed.)

David James Press. Map & Guide to Puerto Rico & the U.S. Virgin Islands. 1988 Edition. New York: David James Press, 1987.

Cita MLA (8th ed.)

David James Press. Map & Guide to Puerto Rico & the U.S. Virgin Islands. 1988 Edition. David James Press, 1987.