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This volume examines the practice, benefits, and specific methods for assessing library users' information needs in any type of library. This needs assessment can be defined as the process of using one or more techniques to collect and analyze data regarding library users or potential users. The guide includes the methodology and techniques for carrying out needs assessment projects, ranging from short-term assessments to long-term research or comprehensive collection assessments. The types of data, techniques, and methodology are described, as are associated pointers and pitfalls.

THE DEFINITIVE INTRODUCTION TO ROCKET PROPULSION THEORY AND APPLICATIONS

The recent upsurge in global government and private spending and in space flight events has resulted in many novel applications of rocket propulsion technology. Rocket Propulsion Elements remains the definitive guide to the field, providing a comprehensive introduction to essential concepts and applications. Led by industry veteran George P. Sutton and by Professor Oscar Biblarz, this book provides interdisciplinary coverage including thermodynamics, aerodynamics, flight performance, propellant...