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| Author(s) [A-Z] | Year [ascending] | Title | Type | Journal | Citation |
| National Trust | 1992 | Biological Survey - Downhill, Co. Londonderry | Report | | Details... |
| National Trust | 1992 | Biological Survey - Springhill | Report | | Details... |
| Nelson, B. | 1995 | Records of uncommon bumblebee species: Bombus sylvarum (L.) and B. monticola Smith, F. in Cos. Clare and Londonderry | Journal | Ir. Nat. J. | Details... |
| Nelson, E.C. | 1977 | Summer feeding of red squirrels, Sciurus vulgaris L., in County Derry | Journal | Ir. Nat. J. | Details... |
| Nolan, J. & Egan, F.W. | 1884 | Geology of the country around Dungiven | Book | | Details... |
| Nolan, J. & Egan, F.W. | 1885 | Geology of the country around Limavady | Book | | Details... |
| Old, R.A. | 1972 | Amygdale minerals at Sounding Hill Quarry, Magherafelt, Co. Londonderry | Journal | Ir. Nat. J. | Details... |
| Patterson, R. | 1900 | Marten in Co. Londonderry | Journal | Ir. Nat. | Details... |
| Patterson, R. | 1903 | Marten in Co. Londonderry | Journal | Ir. Nat. | Details... |
| Patterson, R. | 1903 | Iceland gull in Co. Londonderry | Journal | Ir. Nat. | Details... |
| Penney, S. | 1954 | Buff-breasted sandpiper in Co. Londonderry | Journal | Ir. Nat. J. | Details... |
| Philpott, E. & Rogan, E. | 2007 | Records from the Irish Whale and Dolphin Group for 2005 | Journal | Ir. Nat. J. | Details... |
| Philpott, E., Wall, D. & Rogan, E. | 2007 | Records from the Irish Whale and Dolphin Group for 2004 | Journal | Ir. Nat. J. | Details... |
| Portlock, J.E. | 1843 | Report on the geology of Londonderry and parts of Tyrone and Fermanagh | Report | | Details... |
| Praeger, R.Ll. | 1891 | New or rare north of Ireland plants | Journal | Proc. Belf. Nat. Fld. Club | Details... |
| Praeger, R.Ll. | 1892 | The flora of the Sperrin mountains | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1892 | White centaury (Erythraea centaureum) | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1893 | Colour-variation in wild flowers. | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1893 | Eleocharis acicularis Sm. | Journal | Ir. Nat. | Details... |
| Praeger, R.Ll. | 1893 | Autumn blossoming of spring flowers | Journal | Ir. Nat. | Details... |
367 references found.