| 3772 | 5245 | edited by Judy Leadsom | The period property register August 1986 | 1986 | B/00.4 | Leadso |
| 3773 | 4603 | Elaine Leary | The building limestones of the British Isles | 1983 | B/05.4 | Leary, |
| 3774 | 7414 | J H G Lebon | Shaping the countryside | 1951 | E/11 | Lebon, |
| 3775 | 1558 | Lord Leconfield | Petworth Manor in the seventeenth century | 1954 | E/19.3 | Leconf |
| 3776 | 1534 | Lord Leconfield | Sutton and Duncton Manors | 1956 | E/19.2 | Leconf |
| 3777 | 6313 | Douglas Leechman | Vegetable dyes from North American plants | 1969 | E/33.51 | Leechm |
| 3779 | 3583 | The National Trust | Cotehele House, Cornwall | 1980 | M/08 | Nation |
| 3780 | 2261 | Lefax | Data sheets on sanitation | 1926 | WCP | Lefax |
| 3783 | 6372 | Peter Leith & Sheila Spence | Orkney threshing mills | 1977 | B/24.5 | Leith, |
| 3784 | 997 | A C Leroy & A R Bramston | The story of Wolvesey | 1895 | E/15 | Hampsh |
| 3786 | 5435 | K C Leslie | Weald and Downland OAM : guide for children | 1971, 1973, 1976 editions | M/06 | Leslie |
| 3787 | 5434 | Kim C Leslie | Weald and Downland Open Air Museum : handbook for schoolteachers | 1972 | M/06 | Leslie |
| 3788 | 510 | edited by Kim C Leslie | Roots of America : an anthology of documents relating to American history in the West Sussex Record Office, Chichester, England | 1976 | E/66.8 | Leslie |
| 3789 | 115 | Kim C Leslie, Timothy J McCann | Local history in West Sussex : a guide to sources | 1971 | E/64 | Leslie |
| 3790 | 2978 | K C Leslie, T J McCann | Local History in West Sussex : a guide to sources | 1971 | E/64 | Leslie |
| 3791 | 3925 | Lewes Priory Committee | Appeal for funds to preserve & maintain the remains of Lewes Priory | 1964 | B/26.2 | Sussex |
| 3793 | 4683 | G R Lewis | Illustrations of Kilpeck church, Herefordshire | 1979 | B/26 | Herefo |
| 3796 | 5842 | Francoise Lieberherr-Gardiol | Environmental education for the farming community : experimental schemes in Europe | 1987 | E/16.5 | Lieber |
| 3797 | 5568 | J W Lillico | Blacksmith's manual illustrated | 1930 | E/33.32 | Lillic |
| 3798 | 82 | Margery Lillywhite | West of the Arun : a book of drawings by students of the City of Chichester School of Art | 1932 | E/15 | Sussex |
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