Cite
MLA (8th Edition)
The Guinevere Planitia Region of Venus In Four Map Sheets. U.S. Geological Survey, For sale by USGS Information Services, 1998.
APA (7th Edition)
The Guinevere Planitia region of Venus in four map sheets. (1998). U.S. Geological Survey, For sale by USGS Information Services.
Chicago (17th Edition)
“The Guinevere Planitia Region of Venus in Four Map Sheets.” Reston, Virginia: U.S. Geological Survey, For sale by USGS Information Services, 1998.