مؤلف: John R. Kelly

First published in 1987. Following an introductory chapter on the nature of theory and the outline of the book, there are eight chapters on the explanatory approaches, or models, employed in this dia …

First published in 1987. Following an introductory chapter on the nature of theory and the outline of the book, there are eight chapters on the explanatory approaches, or models, employed in this dia …

First published in 1983. Leisure has too often been approached as a set of activities that people do when everything important has been completed. This text provides a different analysis demonstratin …

First published in 1983. Leisure has too often been approached as a set of activities that people do when everything important has been completed. This text provides a different analysis demonstratin …

Ecotoxicology is the science that seeks to predict the impacts of chemi- cals upon ecosystems. This involves describing and predicting ecological changes ensuing from a variety of human activities th …