Classification
THD - Design and construction in mechanical engineering
5
THA - Mechanical engineering - general
4
CAA - Chemistry - reference books
2
TBA - Electronic engineering - general
2
TBJ - Integrated circuits
2
ACE - Germanic languages, Indo-Germanic languages
1
CBB - Inorganic chemistry - comprehensive works
1
CHJ - Molecular physics, molecular structure
1
CHX - Chemical thermodynamics
1
FAAB - Solid state physics - reference books
1
FAAC - Engineering materials - reference books
1
PAD - Physics - comprehensive works
1
PJA - Atomic physics - general
1
TBS - Digital electronics
1
TEA - Electrical engineering - general
1
THHD - Machine parts
1