Classification
LAD - Biology - comprehensive works
43
AES - Universities, academies - Germany
2
LAA - Biology - reference books
2
AHF - Research and science
1
CR - Nuclear chemistry, radiation chemistry
1
CT - Chemical methods of materials analysis
1
HAD - Medicine - comprehensive works
1
LKD - Biochemistry - comprehensive works
1
LRD - Cytology - comprehensive works
1
PAM - Physics - miscellaneous topics
1
TCN - Microprocessors
1
THQ - Fluid mechanics and dynamics
1