Offers the best general summary of the field, with a view toward fostering common disciplinary goals. Allen and Hoekstra begin with hierarchy theory as a basic premise and explain that the conventional 'levels' are not levels in themselves but criteria for observation.
Offers the best general summary of the field, with a view toward fostering common disciplinary goals. Allen and Hoekstra begin with hierarchy theory as a basic premise and explain that the conventional 'levels' are not levels in themselves but criteria for observation.