| Ref. | Description | Named Used | Page |
|---|---|---|---|
| 821 | Springsteen, F.J. and F.M. Leobrera 1986 Shells of the Philippines. | Guildfordia yoka | 42 |
| 833 | Ruppert, E.E., R.S. Fox and R.D. Barnes 2004 Invertebrate Zoology. A functional evolutionary approach. 7th Ed. | Guildfordia yoka | |
| 75835 | Higo, S., P. Callomon and Y. Goto 1999 Catalogue and bibliography of the marine shell-bearing Mollusca of Japan. | Guildfordia yoka | 50 |