| Title | The Galapagos rift |
| Publication Type | Book Chapter |
| Year of Publication | 1979 |
| Authors | Ballard, RD |
| Editor | Kondo, H |
| Book Title | Encyclopedia Science Supplement 1979 |
| Pagination | 134–139 |
| Publisher | Grolier, Inc |
| City | Danbury, Conn. |
| Title | The Galapagos rift |
| Publication Type | Book Chapter |
| Year of Publication | 1979 |
| Authors | Ballard, RD |
| Editor | Kondo, H |
| Book Title | Encyclopedia Science Supplement 1979 |
| Pagination | 134–139 |
| Publisher | Grolier, Inc |
| City | Danbury, Conn. |