Pitman Research Notes in Mathematics 43 Management 23 Economics 20 Engineering 17 Children's Books 15 Cereals 8 Fiction & Literature 8 Engineering drawing 7 Fairytales & Folklore 7 Planning 7 Social security 7 Accountancy 6 Education 5 Marketing management 5 Organic chemistry 5 Biochemistry 4 Differential equations 4 Economic statistics 4 General Technologies 4 Hilbert space 4 Marine animals-- Marine zoology 4 Mathematics 4 Mycology 4 Agriculture 3 Business communication 3 Chromatography 3 Customer relations management-- CRM 3 Differential equations, Nonlinear 3 Differential equations, Partial 3 Differential equations-- Analysis-- Mathematics 3