| Citation | Manuwal, D.A., 1974 The natural history of Cassin's Auklet (Ptychoramphus aleuticus). The Condor 76:421-431. |
| Ref. | 62715 Manuwal, D.A., 1974 |
| Page | 421 |
| Named Used as Valid | Ptychoramphus aleuticus |
| Locality | |
| Distribution | Aleutians to Baja California, Mexico. |