Found 4 books 
![[Gutenberg 53038] • Language: Its Nature, Development and Origin](/cover/dfxS1-UhO091jyuI/small/[Gutenberg%2053038]%20%e2%80%a2%20Language:%20Its%20Nature,%20Development%20and%20Origin.jpg)
![[Gutenberg 54943] • How to Teach a Foreign Language](/cover/KRDXaPMpwK_gMKlq/small/[Gutenberg%2054943]%20%e2%80%a2%20How%20to%20Teach%20a%20Foreign%20Language.jpg)
[en] [Gutenberg 54943] • How to Teach a Foreign Language Routledge
![[Gutenberg 54694] • International Language and Science / Considerations on the Introduction of an International Language into Science](/cover/T5vDi7TYXem-tb3x/small/[Gutenberg%2054694]%20%e2%80%a2%20International%20Language%20and%20Science%20/%20Considerations%20on%20the%20Introduction%20of%20an%20International%20Language%20into%20Science.jpg)
[en] [Gutenberg 54694] • International Language and Science / Considerations on the Introduction of an International Language into Science Constable & Company, Limited
[en] Essentials of English Grammar · 25th impression, 1987 Routledge