| Authors(s) | Stephenson |
| Year | 1913 |
| Title | On intestinal respiration in annelids; with considerations on the origin and evolution of the vascular system in that group. Transactions of the Royal Society of Edinburgh 49(3): 735-829. |
| Authors(s) | Stephenson |
| Year | 1913 |
| Title | On intestinal respiration in annelids; with considerations on the origin and evolution of the vascular system in that group. Transactions of the Royal Society of Edinburgh 49(3): 735-829. |