| 3751 | 751 | J J Lawler | Modern plumbing, steam & hot water heating | 1901 | WCP | Lawler |
| 3752 | 4568 | Keith Lawrence | Tollhouses of Oxfordshire
information sheet 6 | | B/28 | Lawren |
| 3753 | 8048 | G Lawrie | "All is Safely Gathered in" : granary storage on the Wiston Estate, 1350-1900 | 1990 | B/23.2 | Lawrie |
| 3754 | 6874 | R R Laxton and C D Litton | An East Midlands master tree-ring chronology and its use for dating vernacular buildings | 1988 | B/03.31 | Laxton |
| 3755 | 3749 | W Laxton | Laxton's Builders price book for 1871 | 1871 | B/01.7 | Laxton |
| 3756 | 8286 | W Laxton, N R Wheatley | Laxton's building price book with imperial and metric equivalents 1969/70 | 1969 | B/01.7 | Laxton |
| 3757 | 7037 | Laxtons | Building price book | 1957 | B/01.7 | Laxton |
| 3758 | 8235 | R N Le Fevre | A manual of gas fitting | 1946 | E/32.1 | Le Fev |
| 3759 | 8233 | R N Le Fevre | Domestic utilisation of gas | 1961 | E/32.1 | Le Fev |
| 3760 | 4354 | Helen and Richard Leacroft | Churches & cathedrals : their building and use | 1957 | B/26 | Leacro |
| 3761 | 7120 | Lead Development Association | Lead : European lead in building | ? | B/05.9 | Lead D |
| 3762 | 7118 | Lead Development Association | Lead : the versatile metal | ? | B/05.9 | Lead D |
| 3763 | 7117 | Lead Development Association | Technical notes on lead : production, properties and uses | 1974 | B/05.9 | Lead D |
| 3764 | 1477 | Lead Development Association | Leadwork : lead sheet - and even better building | 1979 | B/05.62 | Lead D |
| 3765 | 7119 | Lead Development Association | Lead : we'd be lost without it | 1988 | B/05.9 | Lead D |
| 3766 | 7121 | Lead Development Association | Leadwork | 1988 | B/05.62 | Lead D |
| 3767 | 4225 | Lead Industries Development Council | Lead work | | WCP | Lead I |
| 3768 | 2262 | Lead Industries Development Council | Lead weatherings : the protection of exposed surfaces. II | | WCP | Lead I |
| 3769 | 721 | Lead Industries Development Council | The plumber's handbook on lead sheet & pipe & their uses | 1950 | WCP | Lead I |
| 3770 | 7305 | Eliza Leadbeater | Spinning and spinning wheels | 1979 | E/33.51 | Leadbe |
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