| Authors(s) | Ball, I. R. |
| Year | 1973a |
| Title | On the anatomy and affinities of Nesion arcticum Hyman, a marine triclad from Alaska (Platyhelminthes, Turbellaria). Can. J. Zool. 51: 1299-1305. |
| Authors(s) | Ball, I. R. |
| Year | 1973a |
| Title | On the anatomy and affinities of Nesion arcticum Hyman, a marine triclad from Alaska (Platyhelminthes, Turbellaria). Can. J. Zool. 51: 1299-1305. |