| Authors(s) | Spoel, S. van der |
| Year | 1973f |
| Title | Strobilation in a mollusc; the development of aberrant stages in Clio pyramidata Linnaeus, 1767 (Gastropoda, Pteropoda). Bijdr. Dierk. 43 (2): 202-215, pls I-II. |
| Authors(s) | Spoel, S. van der |
| Year | 1973f |
| Title | Strobilation in a mollusc; the development of aberrant stages in Clio pyramidata Linnaeus, 1767 (Gastropoda, Pteropoda). Bijdr. Dierk. 43 (2): 202-215, pls I-II. |