Subject
Mathematics
Problems, exercises, etc
4
Engineering mathematics
2
Masonry
2
Problems, exercies, etc
2
Air conditioning
1
Automobiles
1
Computer-aided design
1
Electronics
1
Fluid dynamics
1
Formulae
1
Handbooks, manuals
1
Handbooks, manuals etc
1
Handbooks, manuals, etc
1
Heating
1
Hulls (Naval architecture)
1
Hydrodynamics
1
Maintenance and repair
1
Management
1
Mathematical recreations
1
Mechanical drawing
1
Puzzle
1
Ships
1
Study and teaching
1
Study and teaching (Secondary)
1
Ventilation
1
Welding
1