6
by Free, L.R.
Published 1974
Springer Netherlands

7
by Gottlieb, L. R.
Published 1925
The Board

9
by Müller, L. R.
Published 1931
Springer Berlin Heidelberg

10
by Foulds, L.R.
Published 1992
Springer New York

11
by Lafaye, L. R.
Published 1789
imprimé aux frais de l'auteur, chez John Bell, British library, Strand, libraire de S.A.R. Mg. Neur le Prince de Galles

12
by Foulds, L. R.
Published 1984
Springer New York

13
by Foulds, L. R.
Published 1981
Springer New York

14
by Humphreys, L. R.
Published 1981
Macmillan Education UK

15
by Ellison, Stephen L R.
Published 2009
Royal Society of Chemistry

17
by Moorthi, Y. L. R.
Published 2015
Pearson

18
by Moorthi, Y. L. R.
Published 2015
Pearson

19
by Neale, M., Cardon, L.R.
Published 1992
Springer Netherlands