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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| Penney, S. | 1954 | Buff-breasted sandpiper in Co. Londonderry | Journal | Ir. Nat. J. | Details... |
| Perry, K. | 1997 | Grebe and waterfowl research on Lough Neagh | Ph.D. Thesis | | Details... |
| Peters, J.V. | 1957 | Birds observed at Annagh and Brackagh Mosses, Co. Armagh | Journal | Ir. Nat. J. | Details... |
| Peters, J.V. | 1960 | Occurrence of a hoopoe at Ballynahinch, Co. Down | Journal | Ir. Nat. J. | Details... |
| Peters, J.V. | 1962 | The butterflies of Northern Ireland | Journal | Ir. Nat. J. | Details... |
| Phillips, J. | 1990 | Excursion: Conlig | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.C.L. | 1990 | Dense-flowered or Irish orchid Neotinea maculata (Desf.) Stearn in Co. Fermanagh (H33) | Journal | Ir. Nat. J. | Details... |
| Phillips, J.C.L. | 1991 | Excursion: Rea's Wood, Antrim | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.C.L. | 1992 | Excursion: Oxford Island | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.C.L. | 1992 | Excursion: Castle Caldwell | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.C.L. | 1993 | Presidential excursion: Florence Court Forest Park | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.J. | 1875 | The architectural remains of the Cistercians in the County Down | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.J. | 1884 | Ancient uses and military defences of the Anglo-Norman donjon at Dundrum, County Down | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, J.St.J. & Patterson, R. | 1904 | Annual Report of the BNFC for the year ending 31st March 1902 | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, W. | 1879 | Ferns and fern collecting | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, W.H. | 1901 | My hobby about ferns and its results: personal reminiscences | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Phillips, W.H. | 1904 | Varieties in British ferns | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Picton, B. | 2001 | Lecture: Rathlin Island underwater | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Picton, B.E. | 1990 | The sublittoral communities of Rathlin Island, Northern Ireland | Journal | PMNHS Newsletter | Details... |
| Pilcher, J.R. | 1970 | Palaeoecology and radiocarbon dating of sites in Co. Tyrone, Northern Ireland | Ph.D. Thesis | | Details... |
3701 references found.