Politics and government 356
Personnel management 267
Philosophy 255
Probabilities 179
Problems, exercises, etc 169
Prices 165
Production management 149
Pollution 135
Planning 121
Power resources 121
Programming 121
Political science 105
Psychological aspects 100
Portfolio management 96
Project management 96
Population 91
Periodicals 86
Political aspects 78
Petroleum industry and trade 67
Psychology 63
Public administration 63
Prevention 62
Political economy 57
Poverty 54
Programming (Mathematics) 53
Public welfare 51
Psychology, Industrial 49
Process control 48
Programming languages (Electronic computers) 47
Protection 40
Public relations 39
Problem solving 35
Public health 33
Physical distribution of goods 32
Physics 32
Product management 32
Production (Economic theory) 32
Parallel processing (Electronic computers) 31
Purchasing 31
Photography 28
Programming languages 25
Policy sciences 24
Pricing 24
Production control 24
Performance 23
Poor 23
Production planning 23
Pensions 22
People with disabilities 22
Physiology 22
Politics 21
Privatization 21
Property 21
Public law 21
Peace 19
Petroleum products 19
Pictorial works 19
Profit 19
Public opinion 19
Painters 18
Public utilities 18
Political parties 17
Production 17
Production engineering 17
Programmed instruction 17
Pattern perception 16
Pattern recognition systems 16
Petroleum 16
Privacy, Right of 16
Produce trade 16
Psychoanalysis 16
Python (Computer program language) 16
Partnership 15
Pascal (Computer program language) 15
Poets, Greek 15
Power (Social Sciences) 15
Psychometrics 15
Public-private sector cooperation 15
Packaging 14
Pension trusts 14
Political activity 14
Political participation 14
Presidents 14
Protectionism 14
Purification 14
Passenger traffic 13
Point processes 13
Politicians 13
Popular works 13
Public goods 13
Plant maintenance 12
Prolog (Computer program language) 12
Public works 12
Painting, Greek 11
Pharmaceutical industry 11
Political corruption 11
Politics and culture 11
Pressure groups 11
Production scheduling 11
Public economics 11