| Intro | South African geologist |
| A.K.A. | J. N. J. Visser, J.N.J. Visser, JNJ Visser, Johan N.J. Visser, Johan N… |
| Is | Geologist |
| From | South Africa |
| Type | Science |
| Intro | South African geologist |
| A.K.A. | J. N. J. Visser, J.N.J. Visser, JNJ Visser, Johan N.J. Visser, Johan N… |
| Is | Geologist |
| From | South Africa |
| Type | Science |
| MyWiki ID | johan-n-j-visser |