Leonard William Frederick Elen

7 published titles

Mechanics : a new introduction

2 editions

Workshop mathematics exercises

(Contributor)

2 editions

Motor vehicle exercises in calculation

(Contributor)

1 edition

Exercises in Higher National Certificate mathematics

1 edition

Worked examples in workshop mathematics

(Contributor)

1 edition

Differential equations. Part 1

1 edition

Differential equations. Part 2

1 edition