Classification
YFF - Industrial safety regulations
3
TAT - Engineering Standards
2
TEF - Electric machines, electric cables
2
THD - Design and construction in mechanical engineering
2
THH - Machines
2
THHD - Machine parts
2
CAA - Chemistry - reference books
1
FAA - Materials research - reference books
1
FAJ - Solid state physics - introductions
1
PAA - Physics - reference books
1
PAD - Physics - comprehensive works
1
PGNA - Fusion reactors
1
YDN - Industrial code
1