| 3728 | 7191 | M Lambert | Homes in the future | 1988 | B/22 | Lamber |
| 3729 | 4213 | Lamberts Ltd | Hydraulic & gas engineers : plumbers' section | 1925 | WCP | Lamber |
| 3730 | 2896 | W S Lanchester | Danzey Green windmill | 1973 | B/24.2 | Lanche |
| 3731 | 2623 | Hugh Lander | A guide to the do's & don'ts of house & cottage conversion | 1979 | B/10.0 | Lander |
| 3732 | 2622 | Hugh Lander | A guide to the do's and don'ts of house & cottage interiors | 1982 | B/10.0 | Lander |
| 3733 | 5069 | H Lander | The house restorer's guide | 1986 | B/10.0 | Lander |
| 3737 | 5020 | Sylvia Landsberg | The Tudor garden, Tudor House, Bugle Street, Southampton | ? | B/08.1 | Landsb |
| 3738 | 6840 | Sylvia Landsberg | The Tudor garden, Tudor House, Bugle Street, Southampton | ? | B/08.1 | Landsb |
| 3739 | 5540 | Hampshire County Council | Queen Eleanor's garden, Great Hall, Winchester Castle | ? | B/08.1 | Hampsh |
| 3740 | 4935 | Sylvia Y Landsberg | Design of the Bayleaf garden | 1986 | M/06 | Landsb |
| 3741 | 6394 | Harald Langberg | Protection of historic buildings in Denmark | 1952 | B/10.0 | Langbe |
| 3742 | 2752 | K Langewiesche | Burgerbauten | 1925 | B/01.0 | Langew |
| 3743 | 7287 | Avril Lansdell | Occupational costume and working clothes, 1776-1976 | 1977 | E/74 | Lansde |
| 3744 | 3212 | Gerald Lascelles | Thirty-five years in the New Forest | 1915 | E/18 | Lascel |
| 3745 | 2259 | B Latham | Sanitary engineering : a guide to the construction of works of sewerage etc | 1873 | WCP | Latham |
| 3746 | 4645 | Bryan Latham | Timber : its development and distribution : a historical survey | 1957 | B/05.2 | Latham |
| 3747 | 6231 | L C Latham | The manor | 1931 | E/19.2 | Latham |
| 3749 | 5610 | G M J Lavarini, R Summer | Case di Montagna | | B/10.0 | Lavari |
| 3750 | 4861 | Friends of Ticehurst Parish Church and F J Law | Ticehurst parish church : brief history of church : achievements to date : immediate requirements | ? | B/26.2 | Sussex |
| 3751 | 751 | J J Lawler | Modern plumbing, steam & hot water heating | 1901 | WCP | Lawler |
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